Teren Hark - Quiet and ordinary at school. Passive and nothing noteworthy about him. However, one of his classmates thinks otherwise. Iesa Hun - Quiet but extraordinary. Aggressive when provoked. On top of the school's hierarchy because of her brains and beauty. Recently, she learned the secret about Teren Hark. He's a psychopath who had a rich history of murder, massacre, and other atrocities. But she has her fair share of secrets as well - she's a psychic who can read other people's thoughts, except, of course, the psychopath himself. Welcome to Mershen High where these two superhumans collide as they slowly learn each other's pasts and meet the world's hidden supernatural together while still trying to be proper students.

Slave 434 was his first name. All he knew was life under the cave. Without any hope for this life after his mother was beaten to death. He used [Connect] Everyone in that world has it. If not for his mother. he wouldn't know it. However, he didn't use Connect to get stronger. He made the dumbest decision and used this power to Connect himself to the "imaginary" afterlife. After a whole life of hardship, he was reborn. This time, the world has [Karma] After that; World of Soul, World of Faith, World of Process, and World of Energy. Lastly, in the World of Energy, Slave 434, now called Kaen Elihim Enova, found inner peace and just wanted to use this last world... his last life to rest. But when he finally set his own home and about to waste his days until death. A girl dropped on top of him. "Prince, we finally reunited after so many lives!" "Eh? You don't know that the Seven Worlds are now connected? My theory is that someone powerful enough used Connect on all worlds. After all, we are not the only ones who retain their memories after rebirth... maybe!"

Joren "Horen" Vierei has an intimidating appearance. In compensation, he has developed a kind heart: helping people in need, gentle to his surroundings, and always wore a kind smile. Everything was normal until, one random day, a voice entered his head. [Congratulations, you are qualified to receive the Thug System. Do you want to accept? Yes is the only answer.] "Huh? What the-" [Initiating transition. Joren Vierei is now a Level 1 Underling.] Follow Joren as he got abducted by a secret society after determining that he is an [Abnormal], bringing him into a fantasy school full of magicians and mythical creatures. Encounter bizarre situations and figure how Joren will get out of the unwanted life he was forced to have.