>The third compiled volume of the comedy manga Watashi ni Tenshi ga Maiorita! released on June 15 announced that the series will be adapted into a TV anime. An official website and an official Twitter account for the anime were also opened at the same time.
>Synopsis
>One day, fifth grader Hinata Hoshino brings her friend Hana Shirosaki to her house, and Hinata's sister Miyako, a college student, falls in love with with Hana at first sight. Miyako manages to get along with Hana somehow, but her clumsy behavior and shyness, makes Hana wary. Even so, Hana gradually opens up to Miyako, who wants to become closer to her. (Source: Japanese Wikipedia)
-https://myanimelist.net/news/55377144
tl;dr manga about an adult NEET falling in love with an underage girl and getting a lesbian relationship with her.