In the initial design, Eriki Gogo teased her all over the place and pretended to be familiar with various little girls. She was nicknamed an old Russian hooligan. Now she has become (fake) serious and (real) girlish. Quite often, the manga and game still retain the setting that she is popular with girls, while the anime completely whitewashes her into a serious and reliable older sister.
Eri Ayase, 17 years old, is a third-year high school student at Otonogizaka Academy (graduated). The former president of the student union, his grandmother is Russian, so he is one-quarter Russian. He has a clear mind and outstanding motor skills, and can accomplish everything well no matter what he does. He is extremely popular in the school and has a strong sense of responsibility, so he serves as the student council president. In the first episode of the second season, the position of student council president is passed to Honoka. Distinctive character of hedonism. Try to avoid taking over troublesome things, but because of your outstanding abilities and strong sense of responsibility, you always go against your own will. He has never focused on anything, but he has developed an interest in idol activities. She is the most common-sense and calm person in the team, with a relatively strong personality. The team members also trust her judgment and suggestions, but she is unexpectedly afraid of the dark. Occasionally, he would make fun of others, and he once teased Haiwei.