Kakyuusei
English title: First Loves
Japanese title: 下級生
Alternative titles: My Petty Class Student
Type: OVA
Source: Visual novel
Episodes: 4
Status: Finished Airing
Aired: Jun 16, 1995 to Nov 22, 1995
Duration: 29 min per ep
Rating: Rx - Hentai
Studios: Arms
Producers: Pink Pineapple
Licensors: SoftCel Pictures
Genres: Drama, Hentai
Themes: Harem

This is an older four episode light hentai anime that was originally released in 1995. The first two episodes were brought out in English under the title of "First Loves" and bears no relationship to the "Elf version Kakyuusei OAV" and "Kakyuusei TV series" that were released in 1997-1998 and 1999 respectively. 

First Loves/Kakyuusei OAV (1995) is mainly centered on Kakeru and his relationship with four girls from his high school. It focuses on one girl per episode - the cute and friendly Urara in the first, the forsaken tennis girl Rie in the second, the dog-owning painter Hikari in the third and the tough-fighting motorcycle girl in the final episode. Which girl will Kakeru choose to be with by the end of the fourth episode? 

(Source: AniDB)