Alright, a bit of digging and you are right. There were a couple chapters where Akutsu pretended to be Ooyama’s girlfriend and met his mom. It starts all the way back in chapter 81. That is also, it turns out, when we learn that Ooyama’s given name is Kouta.
Wait, didn’t she met Ooyama’s mom? Pretty sure I remember that.
Alright, a bit of digging and you are right. There were a couple chapters where Akutsu pretended to be Ooyama’s girlfriend and met his mom. It starts all the way back in chapter 81. That is also, it turns out, when we learn that Ooyama’s given name is Kouta.
Good memory!
Oh, don’t give me too much credit. I only remembered about his mom, not his name… 😅