Mayu Yasumura

Mayu Yasumura (安村 麻友, Yasumura Mayu) is a character of We Shall Now Begin Ethics.

Plot
During ethics class, Mayu keeps looking at her phone. She had gathered almost 2000 followers as she had posted a cleavage picture on twitter. Takayanagi sees her and takes her phone. He returns it after school, guessing that Mayu was looking at social media and she confirms and promises to not do it again.

At home, Mayu takes a picture of her legs and share it. She comments that she is a shy, plain girl, but online, no one knows that and she likes the comments and attention she receives online. As the legs picture doesn't get many likes, she makes more cleavage pictures and reaches 2000 followers. However, she sees comment stating if she is only posting body pictures, she must be ugly. Using makeup and photo editing, she posts a picture of her face, although she knows it didn't go that well. She spends the whole morning looking at her phone and doesn't really receive that many good reactions. Takayanagi catches her again and takes her phone.

Later, he explains that she wasn't listening his lectures and that he spoke of personas. He explains that she wears a persona "daughter" at home, persona "student" at school and "social media user" persona. Its all fine having all of them and act differently, but polishing her real persona, will make all the others "prettier" too. Mayu wonders if Takayanagi wears a "teacher" persona and he confirms, although stating it isn't very different that his other personas. Going out, she sees other ethics students, wanting to spend one-on-one time with the teacher. Mayu decides to delete her twitter profile and asks them if she can join their group, which they accept.