Since starting his relationship with Yukinoshita, Hikigaya Hachiman had decided to keep a low profile, living a peaceful and ordinary life. He focused on studying hard, following his disciplined routine, and working toward the goal of getting into university together with Yukinoshita.

However—

At some point, Hachiman suddenly realized that his quiet, low-key existence was making him more and more popular with girls.

The girl who had once been too shy to confess, Yui Yuigahama, became incredibly forward, even confessing to him directly.

His kouhai, Isshiki Iroha, who held the position of student council president, showered him with affection, clinging to him every day.

His desk partner, Katou Megumi, along with the female classmates around him and even the teacher at the front of the classroom, all began to look at him with predatory gazes.

Even his little sister, Komachi, started to cling to him more, sharing a particular "empty sky" moment with him.

……

On the other side of things, Yukinoshita, observing how Hikigaya was growing increasingly close with various girls, calmly considered: Which girl will accompany Hikigaya-kun tonight? Should I let them all accompany him together this time?