The show commits completely to the bit: a guy dating multiple girls openly, all of them knowing, none of them leaving. No drama, no betrayal arcs, just four women and one guy figuring out summer vacation together like it's normal. Comedy lands hardest in those tiny moments when the absurdity hits, someone's jealousy gets defused by a joke, a kiss happens in front of everyone, and nobody treats it like the world is ending. You're watching a harem anime that actually respects the harem, and that permission to stop pretending changes everything about how the gags land.

Naoya's unconventional love life continues into summer. After their hot springs trip, he keeps dating both Saki and Nagisa and promises to treat them equally, but new complications arrive in the form of Milika, who kissed him, and Shino, whose hidden feelings for him clash with her wish to end his two-timing for Saki's sake. What was already a chaotic romantic situation grows even messier when Milika's younger sister Risa appears, adding another wild card to the mix. The group heads into a summer vacation packed with classic romantic scenarios: fireworks festivals, camping trips, and a getaway to Okinawa. The tone stays light and comedic despite the mounting relationship complications, playing the absurdity of the situation for laughs. This is romantic chaos filtered through comedy and fan service, with plenty of summer scenes and swimsuits along the way.