I mean, obsession with Kirio aside given how Aimi acted, feels like (unless they consider it 'betrayal' they'd need to build up their immunity/get some 'practice' in by going on a date with another random guy) if not a group setting then again not rly helpful other than good date ideas if they 'only' get nervous over one specific guy
LOL i guess it might not be uncommon to make ur own line sticker set, viral-ness aside but makes me wonder if kirio would also get a cut or so, or at the very least i can imagine them semi-teasing their cousin like "you got a lot of fame/profit from this, you should treat the whole family to lunch sometime!" after finding out