Tsubomi-chan, Wasuremono Nai?

Descripción general

Tsubomi falls asleep whenever she tries to be "proper". One day, she falls asleep in the park and wakes up to find herself in the hands of a stranger, Grandpa! She is then taken by Grandpa to the Ariake's, a group of people who are not "proper" - her male mother, her female father and her neglected older brother, Yuki-chan - and becomes the "little sister" of a strange pseudo-family! (Source: Renta!, translated)

Fuente: AniList