Chuuhai Lemon: Love 30s - Ame ni Nurete mo
Genres: Comedy, Drama, Romance
Type: OVA, Episodes: 1
Aired: Oct 21, 1985
Source: Unknown
Rating: R+ - Mild Nudity
Synopsis:
Bug-eyed Katsumi (known as Chuhai to his friends) is a muscle-bound detective determined to use his strength and pig-headed stupidity to rescue his teenage girlfriend from a succession of embarrassing situations. 

Based on a manga by Sho Fumimura and heavily seeded with background music from the 1960s U.S. hit parade.

(Source: The Anime Encyclopedia)