Do You Love Your Mom and Her Two-Hit Multi-Target Attacks?, Vol. 2 (light novel) — Dachima Inaka

Masato's mother Mamako is way overpowered in this video game world, leaving him and his party despondent. They then accept a quest at a local academy in order to obtain items that will make them stronger. There Masato meets a cute cleric named Medhi, but once again, Mamako hogs the spotlight--this time in PTA meetings, gym class, and even the school festival! And what's more, the new girl Medhi seems to have some issues of her own...