5-Year-old little loli: "I like my brother the most!!"
15-Year-old girl: "Brother, I hate him the most!"
The school beauty Chi*Yukino is a high-altitude flower in the eyes of her classmates, but in fact, her social skills are disappointing and she is a recluse. Her ordinary life gradually becomes different as she grows up...
The brothers are becoming more and more obsessed with girls, and other boys appear around them...
The key is, why do they always turn black inexplicably?
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.