He claims he’s ugly so in reality he shouldn’t have anything to really worry about plus he’s a background Mob character.
Except the character profile type for Ayato his younger brother is “background type” so nothing is stopping him from also filling the troupe. Additionally the “ugly (or just called ugly)” character in BL manga is also a character troupe. Especially the small dots for eyes instead of detailed ones.
I know this because I’ve read them. He needs to step up his game in the diversity of troupes in his BL collection.
Poor guy has no clue he’s prime main character material. Epically with the whole being completely against a relationship and being “straight” as that is also another troupe.
If he’s this worried he really has to be more proactive and just ask a girl out. Just really go for it, no matter what he does there is a risk of being caught in a troupe but he’ll get no where if he doesn’t take one.
Plus at least currently him saying how he likes women with big chests but never actively looking to date one, not having any magazines of women in his collection (that I can recall), and being foiled by his own fears of possibly getting a date with a girl through the chocolate. Just kinda gives vibes of him being in denial to what he’s actually attracted to in the name of continuing his family’s bloodline in lieu of his brother.
But that’s just my interpretation, I do also understand from a writing stand point he can’t get in any relationship until the manga concludes (if he ever does) cause that would just end the point of the manga in the first place. I do love this story, it’s really fun to follow. And when it one day does reach its inevitable conclusion I’m interested to see how it ends.