Honestly, the way the relationship developed between the two girls in this series is pretty shallow and even started off as r*pey… It didn’t feel like a traditional Yuri where two girls naturally started developing feelings for each other gradually overtime. Instead, it felt more like a Stockholm syndrome situation. Our main protagonist (Marika) is a straight female and essentially she made a bet/contract with another girl (Aya). Because of this bet/contract, Marika can’t really go against Aya’s demands (partly due to pride) so she ends up in a lot of somewhat forceful s*xual situations. The love between Marika and Aya didn’t feel natural but instead artificially created due to situational circumstances. I also don’t really like how their relationship seems to be fueled more by carnal desire rather than actual affection (60% – 40%). Speaking of which, I think it’s really s*upid how not even two weeks after making the bet/contract, the two girls already reached third base… For someone like Marika who’s supposed to be a straight female and is adamant about her s*xuality/preferences, she let herself get taken advantage of s*xually pretty damn easily. I love adult scenes and what not but I don’t like them when they’re rushed and don’t feel real.
As a side note, at times when they’re talking about lesbian relationships, it kinda sounds like a toned down LGBT propaganda (the ones where they try to project their opinions/beliefs onto others).