永倉 幸子

At first glance, she looks like a calm, timid and quiet girl who enjoys reading books. However, Sachiko's true identity is the director of the school's manga club, which publishes erotic douujinshis. While she has a dream of becoming a picture book writer, she is devoting herself to her activities as an otaku. By the way, she has formed the "Toyotama Chibikko Federation" with Kiyokawa Ren and others.