NG Knight Lamune & 40 EX is a oVA anime that premiered in summer 1991.

About the production: the story comes from an original script, there are 3 episodes of about 30 minutes and its current status is "finished".

Its main genres are adventure, comedy, fantasy and mecha.

On AniList, NG Knight Lamune & 40 EX has an average score of 65%, a good score, and appears on 815 users' lists.

The franchise continues in or follows from: NG Kishi Ramune & 40 and NG Kishi Ramune & 40 DX: Wakuwaku Jikuu - Honoo no Daisousasen.

Lamune has returned to Earth with no memory of his adventures on Hara-Hara world and Doki-Doki space. The remains of Gobuhriki find their way to Earth, and awaken the spirit of Don Harumage. While Cocoa builds a fighting vehicle with stuff she finds around Tokyo, Milk and Leska set off to find Lamune and Da Cider to save the day before the new Gobuhriki is revived and destroys the Earth. (Source: Anime News Network)

Official synopsis from AniList.