Super pessimist Uehara Yuuki and mega optimist Miyamoto Niina are still in the throes of their (completely fake) relationship. And...it's working?! Both of them have become better mangaka from acting out various rom-com tropes, to the point where some of those heart-pounding scenarios have actually gotten their hearts pounding. They're now at the level of going on (fake) amusement park dates and doing (fake) karaoke love confessions, but it seems things have grown stagnant. They need a big event to bolster their dreams of becoming mangaka, like...a hot springs vacation? There, one of them might even blurt out a (genuine) confession--unless someone else decides to crash the party!