Nozomu Nanashima

A classmate of Kae and the loyal best friend of Igarashi, this character plays a pivotal role in the series' romantic dynamics. His unique name, featuring the kanji for "seven," serves as the numerical basis for the "5x7" ship name shared with Igarashi. Beyond his school life, he is a protective older brother to Kirari. He also shares a significant moment with Kae when he becomes the recipient of her second kiss.