Magic System in a Parallel World – Chapter 14: Mana Fatigue

Chapter 14: Mana Fatigue

Chapter 14: Mana Fatigue

‘This guy… Not only did he manage to learn the magic spells in seconds, he can even Silent Cast them on his first try! His magic talent is ridiculously high!’ Miss Camille cried inwardly after realizing what Leo had just done.

“I’m pretty good with magic, right? How about we ditch the sword and start focusing on my magic?” Leo smiled at the dazed Miss Camille.

“D-Don’t get ahead of yourself.” Miss Camille frowned after snapping out of her daze.

And she continued, “You may have some talent when it comes to learning magic, but you’re focusing on swordsmanship right now.”

“I understand that I must keep up my appearances as ‘Leo’, but won’t that be a waste of my magic talents?” Leo complained.


After a moment of silence, she spoke, “Listen up, Leo. I admit that you’re very talented with magic. However, that doesn’t mean you should ignore everything else. Just because you can train your mana doesn’t mean you should not train your body, and just because you can wield magic does not mean you won’t need to wield a weapon.”

“There will be situations where you won’t be able to cast your magic, and there will be times when you have to use your body to defend. In these situations, a mage that can wield a weapon and has a strong body will prevail over those who focused only on their magic.”

Miss Camille couldn’t deny the fact that Leo was a magic genius, but she didn’t agree with the statement that it would be a waste of his talents.

And she continued, “How about this? You can focus on training your magic once you defeat Kayn using only swordsmanship. You’re already 10 years late when it comes to learning magic, anyway. Another month won’t mean anything.”

“You’re right, Miss Camille. It’s important to have a sturdy body and know other combat styles even if I can use magic. Sorry, the excitement of being able to learn magic must’ve affected my train of thoughts.” Leo sighed.

“I will continue to train the sword and my body diligently even after I defeat Kayn.”

“Good. Then let’s continue your training.” Miss Camille nodded.

Sometime later, Miss Camille retrieved another dummy from her spatial storage and placed it a few meters away from Leo.

“That’s a Magic Absorbing Dummy that evaluates one’s magic power, right? I watched some of the magic students train with them right before coming here.” Leo recognized the dummy made of crystal.

“Yes, that’s right. Since you already know about it, we can skip the explanation and go straight into training. I want you to hit the dummy with as many Black Bullets as you can use. You can stop once you feel start feeling lightheaded.”


Leo pointed his finger at the dummy and started firing off Black Bullets every few seconds, feeling incredibly refreshed to finally be able to let loose and use magic to his heart’s content.

However, after his 5th Black Bullet, Leo suddenly started feeling lightheaded.

“W-What is happening to me? I suddenly feel super fatigued…” Leo quickly took a seat on the floor and started rubbing his eyes.

“What you’re experiencing is called Mana Fatigue; it’s basically your body telling you to stop using magic. This is what happens when you’re low on mana. If you continue using magic while in that state, you will lose consciousness, and that is the best-case scenario.”

“What’s the worst-case scenario?” Leo asked out of curiosity.

“You die.”

Leo swallowed nervously, and he made a mental note to never use magic whenever he’s experiencing Mana Fatigue, unless it was a live-or-die situation.

“Here, drink this. It’s a mana potion.” Miss Camille handed him a bottle of blue liquid.

After consuming the mana potion, Leo could feel his fatigue disappearing within moments.

‘Taste like sparkling water…’ He thought to himself afterward.

“How often can I drink these?” He then asked.

“Although you can drink mana potions every hour, it is recommended that you drink them every two to three hours to lower the risk of mana overdose, where you acquire too much mana in too short of a time.”

“Every hour? Why is there such a big difference in cooldown between stamina potions and mana potions?” Leo asked.

“There are a couple of reasons. The first being that mana naturally regenerates faster than stamina. Secondly, mana potions are far more advanced than stamina potions due to how much the world relies on mana. One more reason is that mana potions contain actual mana, which will directly recover our mana like filling an empty glass with water. However, you cannot do that with stamina.”

“I see… That actually makes a lot of sense.”

Sometime later, Miss Camille said, “Your mana should have fully recovered now. Go ahead and repeat what you were doing before. This will tell us the state of your current mana capacity right now.”

Leo nodded and started shooting Black Bullets at the dummy again, making the dummy pulsate a pale blue light every time.

About a minute and ten Black Bullets later, Leo started experiencing Mana Fatigue again.

“Ten Black Bullets, huh? Considering that you’d just started using magic today, you’re above average when it comes to mana capacity, I guess.” Miss Camille said.

‘Since each Black Bullet uses at least 10 mana, I should have around 100 total mana right now, huh? It would be nice if the system showed me exactly how much mana I have…’ Leo thought to himself.

The following moment—

<Calculating host’s total mana>

<Calculation completed>

[Mana: 9/125]

‘How convenient…’ Leo was surprised by the Magic System’s response to his desires, and he wondered if there was anything else he could make the system do.

“Miss Camille, I have a question. Let’s say a Black Bullet uses 10 mana and I have 100 total mana. Can I use all 100 mana on a single Black Bullet?” He asked her a moment later.

“Yes, that’s what we call Overcharge— when you use more mana than necessary to strengthen the magic spell. However, there is a limit to how much you can Overcharge a magic spell. Every magic spell will have a minimum mana usage. For example, if you only use 5 mana to activate Black Bullet which requires 10 mana, it will not activate.”

“As for its limit, that will depend on your mastery of that magic spell and your magic affinity.”

“It’s very common for people to Overcharge their magic spells, but that doesn’t mean it’s not dangerous. If you try to Overcharge a magic spell past its limit, the magic spell will explode in your face.”

“I-I see…”

Leo made another mental note to never Overcharge his magic spells past their limit.

“By the way, how can I tell if I am near its limit?”

“When it starts getting hard to pour more mana into the magic spell. You’ll feel a resisting force. It’s very obvious, so you won’t miss it,” she explained.

Sometime later, Leo started swinging the sword again while he waited for his mana to naturally recover.

Although he cannot use magic while he has Mana Fatigue, he could still use his own stamina to train his body.

Of course, this required Leo to get past his mental weakness caused by the Mana Fatigue, which was easier said than done.

Once it was starting to get dark outside, Miss Camille said to him, “Go get dinner. I will see you back here in an hour.”

“Huh? We’re still going to train today?”

“Do you have classes tomorrow?” Miss Camille calmly asked him.

“No, I don’t think so.”

“Then you’ll be training with me. In fact, I don’t plan on letting you sleep tonight.”

Leo’s eyes widened with shock after hearing her words.

‘If only those words mean what I want them to mean…’ Leo felt an urge to cry after hearing her last few words.

“Why are you looking at me like that? If you want to defeat Kayn, you will need to put at least this much effort.” Miss Camille said.

And she continued, “You might not realize this yet, but your match with Kayn is much more important than you think. I would even say that it will decide whether you live or die in this academy.”

“W-What do you mean?” He asked for clarification.

“There are many people— students that have a grudge against the previous Leo, and they are all waiting for the result of your fight with Kayn.”

“If you lose to Kayn, they will undoubtedly flood you with challenges, and if you refuse, they will bully you to your death.”

“However, if you win, there will not be as many challengers, and the better your result, the less likely they will try to mess with you.”

“Seriously?! Just how many students did the previous Leo offend?!”

“A good majority of magic students hate him.” Miss Camille grinned.

“No way…”

After standing there in a daze for a couple of moments, Leo snapped back to reality and spoke in a resolute voice, “I’m not hungry! Let’s continue training!”

However, Miss Camille started walking towards the exit and said, “If you want to starve, you can do it by yourself. I’m going to eat.”

“Also, you are forbidden from training with magic if I am not here with you because I don’t trust you with magic yet.”

“I understand.” Leo nodded, and he continued to train with the sword while Miss Camille disappeared from the room.

List of Chapters
Chapter 1: Parallel World
Chapter 2: Coming Back From the Dead
Chapter 3: Sword Emperors Return
Chapter 4: Give Me One Month
Chapter 5: Magic Affinity
Chapter 6: A New Room
Chapter 7: Lilith the Spirit
Chapter 8: Black Flame
Chapter 9: Being Watched
Chapter 10: Vampire
Chapter 11: Magic Artifact
Chapter 12: One Percent
Chapter 13: Magic Power
Chapter 14: Mana Fatigue
Chapter 15: Magic Shop
Chapter 16: Monsters
Chapter 17: Missing Package
Chapter 18: A Common Trope
Chapter 19: Adventurers Guild
Chapter 20: Intense Training
Chapter 21: First Purchase
Chapter 22: Awakened Magic Affinity
Chapter 23: Becoming an Adventurer
Chapter 24: Tier 2 Magic Spell
Chapter 25: Adventurers Examination
Chapter 26: Adventurers Examination(2)
Chapter 27: Outside the City Walls
Chapter 28: First Kill
Chapter 29: A Day in the Wilderness
Chapter 30: Sudden Confrontation
Chapter 31: Law of the Jungle
Chapter 32: Wilderness Training Course
Chapter 33: Day of the Match
Chapter 34: Fighting Kayn
Chapter 35: A Brutal Beatdown
Chapter 36: Witch of Necromancy
Chapter 37: Special Quest
Chapter 38: Magic System
Chapter 39: Unlimited Potential
Chapter 40: S-Rank Artifacts
Chapter 41: Legendary Artifacts
Chapter 42: Multicasting
Chapter 43: Increase Mana Capacity
Chapter 44: Tier 3 Magic Spell
Chapter 45: Labyrinth
Chapter 46: Labyrinth(2)
Chapter 47: Boss Room
Chapter 48: Boss Room(2)
Chapter 49: Level 3 Magic System
Chapter 50: Artifact Shop
Chapter 51: Ninas Quest
Chapter 52: Reviving the Dead
Chapter 53: Nina Wraiths Story
Chapter 54: Miss Camilles Quest
Chapter 55: Soul Enslavement
Chapter 56: E-Rank Adventurers Examination
Chapter 57: D-Rank Adventurers Examination
Chapter 58: First Mission
Chapter 123 End of the Wilderness Training Course(2)
Chapter 124 Artifact Grading System
Chapter 125 Until Graduation
Chapter 126 Magic Shop Level 3
Chapter 127 Elite Monsters
Chapter 128 Dark Mist
Chapter 129 Lilith's Request
Chapter 130 Plague of Destruction
Chapter 131 Ancient Magic
Chapter 132 Mana Suppression Pills
Chapter 133 Divine Flame Fortification
Chapter 134 Nina's Letter
Chapter 135 Consuming the Fruit of Magic Awakening
Chapter 136 Consuming the Fruit of Magic Awakening(2)
Chapter 137 Level 4 Magic System
Chapter 138 Magic Converter
Chapter 139 C-Rank Passive Skills
Chapter 140 Sparring With Camille
Chapter 141 Sparring With Camille(2)
Chapter 142 Mana Blast
Chapter 143 Training With Eve
Chapter 144 Fire Magic Spells
Chapter 145 Fire Eating Ring
Chapter 146 Khrome's Visit
Chapter 147 Khrome's Visit(2)
Chapter 148 A New Teacher
Chapter 149 A New Teacher(2)
Chapter 150 Alice
Chapter 151 Alice(2)
Chapter 152 The Day Before the School Tournament
Chapter 153 The Day Before the School Tournament(2)
Chapter 154 The Day of the School Tournament
Chapter 155 A Tingly Sensation
Chapter 156 The First Match
Chapter 157 The First Match(2)
Chapter 158 Second Day of the School Tournament
Chapter 159 Four Witches Academy's First Match
Chapter 160 3 Seconds
Chapter 161 Kevin Stoner
Chapter 162 Four Witches Academy's Second Match
Chapter 163 Fighting the Red Moon Academy
Chapter 164 Fighting the Red Moon Academy(2)
Chapter 165 Crimson Witch
Chapter 166 Leo Takes the Stage
Chapter 167 Leo Takes the Stage(2)
Chapter 168 Flame Wall
Chapter 169 Lia Scarlet's First Appearance
Chapter 170 Ruthless
Chapter 171 The Most Anticipated Match
Chapter 172 Fighting the Scarlet Academy
Chapter 173 Fighting Lia Scarlet
Chapter 174 Fighting Lia Scarlet(2)
Chapter 175 Fighting Lia Scarlet(3)
Chapter 176 Defeating the Scarlet Academy
Chapter 177 End of the Tournament
Chapter 178 Meeting the Four Celestial Families
Chapter 179 Meeting the Four Celestial Families(2)
Chapter 180 Meeting the Four Celestial Families(3)
Chapter 181 Meeting the Scarlet Family
Chapter 182 Meeting the Scarlet Family(2)
Chapter 183 Meeting the Scarlet Family(3)
Chapter 184 Meeting the Scarlet Family(4)
Chapter 185 New Uniform
Chapter 186 Labyrinth Examination
Chapter 187 Accident
Chapter 188 Vampire Vanquisher
Chapter 189 Monthly Limit
Chapter 190 Going Back to the Wilderness
Chapter 191 Partner
Chapter 192 Leon's True ldentity
Chapter 193 Devourer of Gods
Chapter 194 City Teleporter
Chapter 195 Territory Control
Chapter 196 Territory Control(2)
Chapter 197 Labyrinth Mission
Chapter 198 Four Major Continents
Chapter 199 B-Rank Labyrinth
Chapter 200 - B-Rank Labyrinth(2)
Chapter 201 - B-Rank Labyrinth(3)
Chapter 202 - Paralyzing Effect
Chapter 203 Ambush
Chapter 204 Ambush(2)
Chapter 205 Monster Stampede
Chapter 206 Monster Stampede(2)
Chapter 207 Reinforcement
Chapter 208 lnfancy Stage
Chapter 209 Matthew Hinks
Chapter 210 Matthew Hinks(2)
Chapter 211 Fighting an S-Rank Adventurer
Chapter 212 Fighting an S-Rank Adventurer(2)
Chapter 213 Clearing the B-Rank Labyrinth
Chapter 214 Leaving the Labyrinth
Chapter 215 Confronting Aaron
Chapter 216 Confronting Edwin
Chapter 217 Promotion to B-Rank Adventurer
Chapter 218 Skeleton Graveyard Raid
Chapter 219 Skeleton Graveyard Raid(2)
Chapter 220 Skeleton Graveyard Raid(3)
Chapter 221 skeleton Graveyard Raid(4)
Chapter 222 Skeleton Graveyard Raid(5)
Chapter 223 Skeleton Graveyard Raid(6)
Chapter 224 Queen Luna
Chapter 225 Queen Luna(2)
Chapter 226 Queen Luna(3)
Chapter 227 lnterview
Chapter 228 Elite Monster
Chapter 229 Elite Monster(2)
Chapter 230 Body Search
Chapter 231 End of the Raid
Chapter 232 End of the Raid(2)
Chapter 233 Splitting the Rewards
Chapter 234 Parting With the Party
Chapter 235 Transfer Student
Chapter 236 Transfer Student(2)
Chapter 237 Transfer Student(3)
Chapter 238 Preparing for the Ancient Labyrinth
Chapter 239 A Fourth Member
Chapter 240 Celeste Light
Chapter 241 Day of the Labyrinth Examination
Chapter 242 Day of the Labyrinth Examination(2)
Chapter 243 Entering the Ancient Labyrinth
Chapter 244 Thousand Miles Bridge
Chapter 245 Thousand Miles Bridge(2)