Lime-iro Senkitan: Nankoku Yume Roman
Japanese title: らいむいろ戦奇譚 南国夢浪漫
Type: OVA
Episodes: 2
Source: Visual novel
Genres: Action, Comedy, Ecchi
Studios: Studio Hibari
Producers: KSS, Soft Garage
Duration: 28 min per ep
Rating: R - 17+ (violence & profanity)

With the battleship Amanohara seriously damaged and in need of repair, it lands on an island where a Gogyou festival has just begun. Shintaro Umakai and his five female students, known as Raimu Unit, enjoy a period of peace on the island. However, the enemy still pursues them. Umakai and his unit deal with the enemy while the five girls try to draw his attention.

(Source: ANN)