Karuizawa Syndrome
軽井沢シンドロームKaruizawa Syndrome
The story
OVAIt is an action comedy about a young man's persistent sexual fantasies. It has 4 distinct art styles: a manga style, a SD style, a realistic style, and a art-graphic pencil style. (Source: technogirls.org) Based on the manga by TAGAMI Yoshihisa (たがみ よしひさ) that serialised in Big Comic Spirits.