Aren woke up inside his dream world again.
The ground was white. Endless. Silent.
The Headmistress stood there with her arms folded, her expression heavy. ⚖️
Aren spoke first.
"Where is the real threat?"
She answered without hesitation.
"Professor Kevin."
Aren blinked once.
"The kind one? The teacher everyone loves?"
Her face hardened.
"That kindness is a mask. He is obsessed with Mimi. Deeply. Dangerously."She stepped closer."Just like you obsess over knowledge… he obsesses over her."
Aren rubbed his chin.
"Easy. I go and kill him."
"No," she snapped. ❌"He is one of them — one of the forces tied to the coming war."
Aren stared.
She continued calmly:
"Mimi has many enemies. You must remove them one by one, without exposing yourself."
Aren nodded slowly.
"Fine. I'll remove him."
The dream dissolved. 🌫️
Reality — Demon Academy Library 📚
Aren sat at the back table, a book open in front of him.Drako sat beside him, writing notes.
Without lifting his eyes, Aren spoke quietly:
"Tell me about Professor Kevin."
Drako smiled.
"Oh! He's the best, Aren! Kind, helpful, always smiling. He helps students for free, he—"
Aren closed the book.Thud.
"A two-faced person."
Drako froze.
"W-What?"
Aren stood.
"I need information."
Investigation Phase 🔍
For the next three hours, Aren:
• talked to students• listened to rumors• watched Kevin from the shadows• followed him to staff rooms• read restricted files• tracked his movements
Every detail matched the Headmistress's warning.
Kevin was too kind.Too helpful.Too perfect.
A mask.
Aren whispered:
"He's hiding something ugly."
Operation: Bait the Obsession 🎯
That night, Aren met the Headmistress again in dream-space.
"I know how to expose him," Aren said calmly.
She raised an eyebrow.
"How?"
Aren lifted four fingers.
A. Break his controlB. Trigger his obsessionC. Force his emotions to spikeD. Make him reveal his true face
Her eyes widened.
"You're going to push him?"
"Yes," Aren replied."I'll make his obsession so strong… he won't be able to hide it."
She bit her lip.
"That's dangerous."
"When a man like him loses control," Aren said flatly,"he always tries to kill the obstacle."
"You," she whispered.
Aren nodded.
"Good. Let him try."
She inhaled sharply.
"You're walking into fire, Aren."
"Knowledge is fire," he replied. 🔥
The Game Begins ♟️
The next day—
Kevin walked through the courtyard, smiling as always.Students admired him.
Aren watched from a distance.
Kevin suddenly stopped.
His heart raced.
He didn't know why.
Then he saw Mimi across the courtyard.
Something twisted inside his chest.Too strong.Too sudden.Too wrong.
Aren whispered:
"Step one… obsession triggered."
Kevin's fingers trembled.
His smile stayed.
But a crack formed beneath it.
He looked at Aren.
And for the first time—
He hated him.
Aren turned away. 🚶♂️
Public Pressure 😈
The academy buzzed like a hive.
Students whispered.Teachers pretended not to notice.Deadly Sin heirs watched closely.
Because Aren had changed.
He walked beside Mimi now.
Not behind her.Not ignoring her.
Beside her.
Mimi smiled brighter every day. 😊Kevin's patience thinned every hour.
Aren's Moves ♜ Cafeteria 🍽️
Aren pulled a chair out for Mimi.
She froze.Everyone froze.
"You didn't eat," Aren said."You'll faint."
Kevin crushed his spoon. 😬
Library 📖
Aren leaned close to Mimi.
"You're reading it wrong. Here."
Kevin snapped a book spine in half behind a shelf.
Training Hall 🏟️
Mimi tripped.
Aren caught her wrist.
"You okay?"
Kevin choked on air.
Classroom Door 🚪
Aren stood like a silent guardian.
"See you later, Aren," Mimi whispered.
Kevin nearly screamed.
Final Straw 💥
Aren tucked a strand of hair behind Mimi's ear.
"Your hair's messy."
Kevin stood up so hard his chair shattered.
Aren didn't look at him.
"You're safe with me, Mimi."
Kevin's sanity snapped.
Drako whispered:
"He's going to explode."
Aren nodded.
"Good."
Midnight — The Library 🌙
A single note.
"Midnight. Library. Alone."
Kevin arrived first.Aren arrived second.
They sat across from each other.
Two monsters smiling like friends.
Aren leaned back.
"Did Mimi sit here before?"
Kevin twitched.
"You keep her things, don't you?" Aren continued calmly."The plate she used. The bench she rested on. The air she breathed."
Kevin screamed.
"SHE BELONGS TO ME!"
His obsession spilled out like rot.
"She is MY goddess!"
Aren's voice stayed calm.
"You're obsessed. And stupid."
Kevin attacked.
The Battle ⚔️
Kevin stabbed him.Aren died.
Kevin broke his neck.Aren died.
Kevin crushed his heart.Aren died.
And every time—
Aren stood back up.
Bleeding.Burned.Broken.Smiling. 😈
Kevin panicked.
"WHY WON'T YOU DIE!?"
"Night," Aren replied.
Explosions.Poison gas.Fire.
Four hours passed.
Mana gone.Breath ragged.
Fist to fist.
Bone to bone.
Only one stood in the end.
Aren.
Kevin collapsed.
Dead. ⚰️
"…You should've stayed a professor," Aren muttered.
Aftermath 🩸
The library burned.
The academy arrived.
Mimi arrived last.
She saw Aren sitting in blood.Kevin's body on the floor.
"Aren…" she whispered."What did you do?"
Aren looked up at her.
And smiled.
"Protected you." 🛡️❤️