Why do you say Xiao Buried is dead?

Someone with a big brain hole said that Xiao was buried dead. This is a small burial mother who is afraid that Taiping can't accept it, so she lied to Taiping about going overseas. In fact, she is pretending to be Xiao buried! Xiao Buried, Daping's sister, was once lost, so he became so fond of her. There is a curious story that the missing sister Xiao Bury was found, and this Xiao Bury was pretended by Daping's mother. The evidence is that in several scenes, her mother's appearance almost overlaps with Xiao's burial.

Doma Umaru's role introduction:

Doma Umaru, with a gentle personality and a kind heart, is an impeccable and beautiful female high school student, who is cared for by all talents. But the small burial at home will become a shriveled woman in hamster pajamas, delicious, lazy and addicted to otaku culture. Living with my brother, I am habitually dependent on my brother, and I will feel lonely when I am separated from my brother. I'm my brother.