Hiroyuki Tokumori

As the brilliant and handsome classmate of Yukari, this young man serves as her initial romantic interest at the start of the series. He shares a notable lineage as the son of Hiroaki Tokumori, also known as "Toku-chan," a character from Gokinjo Monogatari. Combining sharp intellect with a charming presence, he plays a pivotal role in the early dynamics of the story's social circle.