Reborn: If I Take Things Seriously, You've Already Lost

You can skip the prologue and go straight to the satisfying main story.

"Why is he so strong?"

"If I take this seriously, you lose!"

"Is he the monster who single-handedly wiped out five A-rank and four S-rank espers in the lab?"

After the male lead, Elsa, is reborn, he gains the power of the Abyssal Demon King. At the time, he is being subjected to inhumane experiments. Suddenly transforming into a demon and going berserk, he single-handedly wipes out the lab, killing five A-rank espers and four S-rank espers. One S-rank No. 2 esper is also seriously injured and forced into a secondary role afterward.

His power is so dangerous that he is forcibly fitted with a sealing ring. Even with most of his power sealed, he is still terrifyingly strong!

After his mutation grants him the Demon King's power, the kingly charm gives him a magnet for romance. He is always having lucky encounters with women, but who could have guessed...

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.