Well I saw the tags and then the cover and went to investigate... It's wild, but I'm not gonna spoil anything, I think ch2 can handle that and the translator wouldn't want me to ruin the surprise.
@Serenata It feels like you're implying by the supposed "twist" that there's a focus on male characters being dominated in chapter 2 lol
Personally I wish the series was about the relationship between the two female characters, but alas that's alright. I hope to find some more bondage yuri in the future, it's pretty rare.
Well mangaupdates tags this as yuri, and the author did Ore Ga... Yuri!? so the chances are high. A google image search with the japanese title also seems to suggest so.