This was a small budget film, and that's not necessarily a bad thing, but I do think that if you're looking for an adapted manga J Drama you'll be better served by seeing Cherry Magic, which came out the same year:https://mydramalist.com/69463-30sai-made-doteida-to-mahotsukai-ni-narerurashi

It handles the struggle to understand someones feelings and the evolution into closeness with them with a great deal of elegance and humour.

I'm not saying "Don't watch this" because if you like Japanese comedies this fits into that. But it feels dated already in 2024. Cherry Magic doesn't.