Hina is an unashamed gachikoi who ends up forking over 50k yen just for him to notice her, after which, Subaru messages her and arranges a date for them. Of course, Subaru pushes for sex on the first date, but Hina rejects him and says that she doesn't want to go that far yet. Subaru leaves her and Hina feels terrible for not reciprocating and losing her one chance at being with him. Of course, this isn't their only chance, and they maintain an on and off relationship until another gachikoi discovers the affair.

Rikomero, a 29-year-old office worker, finds out about Hina and Subaru's relationship and threatens to leak this information online. Her and Hina have a screaming match over who Subaru's real girlfriend is and things come to a head when the two find themselves outside Subaru's flat demanding him to open the door, until Cosmo finds them and tells them to kindly fuck off. The two convince him to call Subaru and when Rikomero loses it at him, he dumps her. She then tries to jump off the balcony, which somebody filmed, and Cosmic uploaded to their Youtube channel to rake in views. After this, Rikomero meets Hina again and informs her that she plans to leak the photo of her and Subaru. Hina decides to confront Subaru about his infidelity and begs him to stay with her, which he brushes off and tells her to be thankful that she got to have sex with him.

Hina snaps. Whilst Subaru begins another stream, Hina breaks in with a hammer and almost bludgeons him to death. After a small argument, Hina ends up tazing Subaru and abducting him. Now, to cope with the reality of Subaru's actions, she insists that Subaru (whose real name is Kuyuru) act as his streamer persona and make her happy whilst he's tied to a chair in a warehouse. For some reason... couldn't tell you, she blabs about this outside and is caught by Rikomero and Cosmo. Whilst the three of them have a screaming match, Cosmo gets a call. They found Subaru! Cosmo leaves Hina and Rikomero alone; Hina has a meltdown and Rikomero basically tells her to grow the fuck up and move on. Whilst in hospital, Subaru starts crying about how hard everything has been lately, and Cosmo, absolutely sick of this shit, snaps at him to suck it up and "take responsibility" (I love it when they say that in Japanese media). That night, Hina appears beside Subaru's bed and tells him how much she loved Subaru, but not the one who was beside her or the one who she kidnapped, but the one who "sparkled behind the screen". With that, she's gone. Hina drops out of college and moves back with her folks, having spent her tuition on Cosmic donations. Rikomero gets the closure she needs and goes to a mixer. As for Subaru, well, we finish with him starting up his first stream post-hospitalisation; out of the blue he gets a random donation of 50k. Who sent it? You can probably guess. Subaru freaks out, and with that, we finish their arc.