Mari Tsutsui
筒井 まり
Anna’s best friend and very protective of her. She claims to be in love with Anna. Looks moe but actually has an aggressive attitude and hates males.
She has a 25-year-old brother Masaomi who already moved out and is also married.
In chapter 20, Mattsun tells first her brother and then her his true feelings and she then believes him.
