First of all, it's pretty weird to make 16-year-olds give a shit about marriage. Again, this is what makes it highly unrelatable. Second, the intended comedy in this anime really doesn't land. Third, the MC's character is pretty bland and lowkey annoying, and this episode does have enough reason to believe he is. Ririna is a bit of a weird character, but I do like how bold she is, but the attempt to make her seem like a clutz really bothers me.