Ishikawa has light brown hair and black eyes. He wears a grey vest over a white dress shirt and black tie, black pants, and brown shoes.

Ishikawa is an extrovert and very athletic. He shows a lot of kindness and concern towards Raido and Reina's relationahip. He also gave up his spot in the group trip to Riku Tamanaha so that she wouldn't be left out.

It was suspected that he and Sato would be together, but as the show progressed he appeared to have strong feelings towards Raidou, though not sure what kind of feelings exactly considering they had no seemingly important interactions prior to the camping trip episode.

(Source: Aharen-san wa Hakarenai Wiki)