One of my favorite H yuri manga with polyamory. I really like all the girls tbh. The Mari x Akira we never saw it and it felt kinda awkward their kiss at the end since they've never done it. Sure I get that sometimes it feels like cheating when Akira and Miu where doing it with another girl but both were ok. Most likely they will continue doing it with the new members but I'm sure that when they graduate from high school, Miu and Akira will stay together due to obvious reasons. I like Miu and Akira as a couple but also I wouldn't have minded if Akira Miu and Riri were together in a three way relationship cause Miu and Riri were Akira's first time.