I returned to this world to protect a glimmer of light.
At the beginning:
Gu Yu: My brother is a weakling. He is fragile and easy to push down.
Red-haired, Yellow-haired and other members: No, he is not...
Later:
The school bully attacks x the school bully suffers
Gu Yu: That's right, my brother must be attacking.
Gu Gu:... No, I'm not.
Character introduction:
Gu Guan, a reborn man controlled by a girl, thinks he is ordinary.
Gu Yu, a cool girl with a black belt in Taekwondo, once thought she was at the top of the food chain, but she never expected that she was the one at the bottom.
Qin You, a man who stands at the top of the food chain, is equipped with the aura of a top male protagonist, but he came out as gay on his old father's birthday and ran away from home on the same day.
Generally speaking, this is a story about a brother who is reborn and takes his sister towards a better life together.
Intention: The world is so big, let my sister go and see it