Naoya just got a girlfriend, the gorgeous Saki-chan, and though their intensities often pit them against each other like ice and fire, they’re totally, uncontrollably in love with each other. He vows never to cheat...when out of the blue he receives another confession! Nagisa’s cute, sweet, and she’s made him lunch to boot! He knows he can’t cheat, but he can’t let a cutie like this get away...so he does the logical(?) thing: Asks Saki for permission to date them both! The confidence! The arrogance! The very gall! No matter the outcome, Naoya’s future will be lively!
Milika forcefully steals Naoya's first kiss, leaving Saki and Nagisa absolutely devastated. In order to deepen their bond, Naoya decides to take the two girls out on a vacation date to the hot springs! But for some reason, Nagisa is keeping her distance from the two despite this being a vacation for the three of them! What's more, Saki's friend, Shino, intervenes on their trip, determined to find out if Saki's being two-timed!! What's in store for these three on their much-anticipated date?!