Third-generation VTuber Awayuki Kokorone's fans know her as a prim, proper, and graceful idol. Though she has considerably less fans compared to other VTubers in the Live-On agency, Awayuki's loyal following supports her every step of the way. One night, Awayuki forgets to turn her livestream off—a blunder that changes the trajectory of her online career forever. Contrary to her usual angelic persona, her genuine brutish personality is exposed to more than ten thousand people who tuned in. Awayuki reveals that she is nothing more than a severe alcoholic who spouts profanities nonstop, constantly viewing her fellow VTubers with lustful admiration. However, instead of being reprimanded by her agency, Awayuki receives praise: her unhinged, disorderly conduct was Live-On's actual expectation of her. Now having her big break and permission to stream without holding anything back, the once-unpopular VTuber begins her rise to stardom.

Everybody goes on vacation to Ayanokouji's private island for fun in the sun. Hilarity ensues.

Yuuhi Katagiri is not your average girl – she's the treasured daughter of the Katagiri family. She's generally kept under strict supervision, but one day ends up walking home from school on her own. This proves to be instant trouble when a group of boys start harassing her. Junichi Nagase, who was on his way home from a convenience store, sees the troubled Yuuhi and comes to her rescue. One of the boys recognized Junichi as the famed Geno Killer and they dash off. Yuuhi thanks Junichi and when she asked for his name, he just waves and leaves. Of course, he regrets trying to act cool in front of the beautiful girl right away, wishing he asked her name. The following day, a transfer student joins Junichi's class – it's Yuuhi! She calls Junichi out as the Geno Killer, the only name she remembers him by, and rumors about the two spread quickly. Matters are made worse when Junichi kisses Yuuhi due to a misunderstanding. And on top of all that, it turns out that Junichi is Yuuhi's fiancé! Yuuhi doesn't see Junichi as someone worthy. But, she could not go against her father's wishes. The only thing that Yuuhi can do is live with Junichi in the house he shares with his little sister Minato, and prove that Junichi is not worthy to be her husband. Will she succeed in proving his unworthiness, or will she fall in love on the way?

The story follows the coming of age and Shinki battles of Tsubasa, a boy who dreams of becoming a Shinki Master, and his Shinki partner Arnval Mk. 2. (Source: ANN)