Invincible After Death

A bunch of people are really going to be reborn, and I have to die? "You should die quickly, it will be really scary after you die!" Said a reborn young lady. "I have never seen such a terrifying existence." A certain invincible boss said. ··· The introduction of this book is weak, please enjoy the text. Graduation is around the corner, so I'll update as the occasion arises. I hope you all can understand me. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.