Ghosts invade the world, and people use mental manipulation to sign contracts with ghosts to protect their homes.
The cool and slightly funny girl and the cold and gloomy boy redeem each other
Five boys and girls with different identities and personalities became confidants and defended their homes.
In the end, they had to fight each other because of their positions.
Good friends are now enemies when we meet again, and our former lovers have left
happy+ending
Concept: Youthful and lively sweet text