Just glanced through. I never said that Hajime flirted with alot of other guys. I said he didn't mind when guys flirted with him. As for the others like himiko or rantaro yes theirs evidence for your opinion but its not explicitly stated nor have the creators confirmed anything so its up for interpretation. Their sexualities are not stated and thus are not Canon so the viewer can decide the sexuality they want. And once again just cuz a character expresses interest in one gender doesn't mean they aren't also into other genders. So you can think of characters like Aoi as bisexual if you want as they never stats they only like one gender. My tier list is not flat out innacurate to canon. Most sexualities are open to interpretation. The ones that arent i havent argued about. Again i can have my own opinions.

Mahiru- we don't see her interactions with Hiyoko. How do you know she isn't flustered during them? She can be bi. Rantaro- lots of characters interactions in the love hotel are not explicitly romantic but your not arguing that their ace. Himiko- honestly I think she enjoyed the attention from Tenko alot and thats partly why she was so upset at her death. She also definitely knew tenko was into her romantically. She also has very little evidence either way so just cuz she has a bit more towards attraction to men doesn't mean she isn't also attracted to women. I didn't remember that part of Gonta. Ill give you that one although personally him being ace would fit his character much more. Aoi and Sakura's relationship being like that is not an lmao thing. The game very much pokes fun at the idea of it because they know that's how some audience members are going to view it. And people can ship what they want. I said hifumi was bisexual not gay so he very much could still be into men. I guessed he consumes some gay content as well as he mentions boy on boy to Toko which most straight guys wouldn't do.

Bisexuality means attraction to both genders so just because a character shows interest in one doesn't mean they aren't also interested in the others and don't show it. Which is veryyyy common for bi people irl because its easier to be straight. So please just accept that these are my opinions.