Daiki Ishikawa

Ishikawa Daiki (石川 大輝) is a classmate of Taichi, Iori and Yui's during their second year. He is the boyfriend of Nakayama Mariko.

Personality
In Step Time, Ishikawa is shown to be a rather bland conversationalist, though he tries his best to keep his date with Mariko interesting.

Relationship

 * Nakayama Mariko: Ishikawa's girlfriend. They started dating during the "love boom" in the fall of their second year. Other people find it hard to believe that the cheerful Nakayama is dating the more taciturn and cool Ishikawa.