I love that the mum is trying to create standard Yuri drama with the whole "I don't understand you're both women and want to get married? Don't be ridiculous" shtick and Arisa is just having none of it
Arisa: we're getting married, pls come to the wedding
Mum: I don't understand no
Arisa: pls come to the wedding!! We haven't had sex yet but also it's a sexual relationship
Mum: you know it's illegal
Arisa: ok I forgot about that law! Come to the wedding
Mum: no I still am not accepting this
Arisa: you want to see Mari in a wedding dress, right??
Mum: (yes)
Arisa: great we'll see you at the wedding, give us your blessing!!
Amazing