Following the event on Smile Smile Ship Start, Aqours started preparing for Love Live Finals in March. But things got in their way. Riko had a rabid fan problem. Hanamaru had a boy problem. Mari had a marriage problem. And then there was this boy band from Canada. Meanwhile, the 4 Class 1-B students returned to UA expecting fanfare, but got detention instead.

Aqours is invited to perform on a cruise ship in front of Japan dignitaries, with whom Mari has secret connection. Chika invites Yosetsu. But somebody does not want the ship to return to port, and what starts off as a weekend fun turns into a game of survival. And on land, Hiryu, Kosei, and Sen race against time to get their friends out of the water, with the help of Tsuyu Asui.

Now a committed couple, Yosetsu and Chika must navigate their way through Love Live unforgiving schedules, trickery, deceit, jealousy, mentally-distubed senpai, and ill-used quirks, all the while maintaining their passion alive long-distanced. Mainly Hero Academia - Love Live Sunshine crossover but with reference to many other anime / manga.

What if Love Live actually occurred in the BNHA universe? And what if, what if, Aqours performed one last time at the UA tournament? [possible parings, but not sure yet.]