No one should give up!!!! Yacchan should not back up regardless of who Toono chooses in the end, he should try until he knows for sure! It is important to him as he finally can tell someone he likes them and the person knows real him. Toono should stand up and I see him standing up more now than in the beginning of the series. Kashima should be greedy and not give up what he wants. Of course in the end either Yacchan or Kashima will have to give up (probably Yacchan) but I want them to fight for it and be real to themselves.

Yachan BACK UP, Toono already has a boyfriend, in my opinion they wouldn't work poly because he's a pain in the ass and Kashima need to catch a breath and he can only do that with Toono BUT wouldn't mind if they have a threesome at some point
And I wanna see the dynamic between Yachan and the blue hair one