A chance encounter with a beautiful girl during spring break inspires Tomoya to make a dating simulation video game. He tries recruiting Eriri and Utaha to assist him.

While Tomoya is preparing for the Summer Comiket, two familiar faces from his past show up. Will this affect his game and all the preparations?

One and a half years ago at Toyogasaki Academy. Utaha confirms that the library is carrying the light novel she wrote Metronome in Love. She leaves and gets stopped along the way by Eriri Spencer Sawamura. We finally get to see how Eriri and Utaha meet. What exactly happened between them?!