Ruka Seto

About

Ruka is a cousin of Takamura who's attending College in Tokyo. Contrary to her cheerful and outgoing image, she's actually a closeted pervert who's obsessed with dicks, much like Senko. Ruka has a crush on Takamura, but after learning about his feelings toward Senko, she backed out of her confession plan and gave her blessing to the newly formed couple.

During the time working for Amaguri Handyman, Ruka developed a close relationship with Sugita, mainly because she's attracted by his big dick, which she nicknamed him "Big Mountain" after witnessing its size during a company trip. After a lengthy drama, Ruka eventually confessed her feelings to Sugita, which he accepted, marking the beginning of their relationship as lovers.