Dousou Kai Again
Japanese title: 同窓会again
Type: OVA
Episodes: 2
Source: Visual novel
Genres: Hentai
Studios: Arms
Producers: Lemon Heart
Duration: 27 min per ep
Rating: Rx - Hentai

The members of the tennis club at Sakura Junior High School. Have a class reunion on New Years Eve. They're all twenty, and Mizuho is happy to get to see Tatsuya again, her secret love. At the reunion, they plan to stay at Mizuho's mother's lodge in the hot spring resort for a ski trip. Unfortunately, however, Mizuho's mother's become ill. She doesn't know whether she should care for her mother or finally give her self to Tatsuya.

(Source: ANN)