Uneasiness at Akihabara (S01E06)

Struggling to access adult content on their father's raffle-won PC, Ako and Riko decide to head to Akihabara to purchase erotic games. However, they need to keep their true intentions hidden from Keita, who they must bring along. Ako distracts him with a visit to a cosplay store while Riko sneaks off to explore the 18+ game section. During their escapades, they unexpectedly run into Ako’s teacher, Yūzuki, who is secretly an otaku dressed as Mahoro. Later, when Riko tries to grab a special edition game, Yūzuki takes Keita aside to chat, inadvertently leading him to a cosplay-themed love hotel. Eventually, Ako and Riko find them, just as Keita's junior and Yūzuki's sister, Mikazuki, arrives and covers for Yūzuki by claiming she’s buying the game for her.