Is friendship between men and women established? (No, I don't! (1) / Kamelie

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

A tale of youth between a man and a woman who swore eternal "friendship". The botanical male Yuu Natsume and the magical Yoka Girl 日葵 Inuzuka. They met on the occasion of a junior high school cultural festival and they got along well and pledged eternal friendship. Two years after that, a beautiful girl appeared in front of them who didn't develop even when they became high school students?