Responses
It was said earlier in the manga that Kashima and Yacchan are cousins so no. I would hope they wouldn't do a poly thing with them
Sorry forgot about that yeah that’s definitely a no, but that’s also why i said or something, more like an open relationship like toono could date both :/
yacchan x toono this kashima x toono that, why can’t we have both? kashima x yacchan x toono or something, polyamorous relationships are real but also queer relationships have never been “traditional” or “normal” as we clearly see in this manga they all different like it’s not impossible, that heart photo could’ve been a foreshadowing