The Lamune & 40 series consists of the following OAV series:
NG Knight Lamune & 40 EX
This series takes place after the end of Lamune & 40 tv series. 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
when probed by Dr. Kotasturof awaken the spirit of Don Harumage. 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.
NG Knight Lamune & 40 DX
Not a great series. Milk spends too much time pissed off and it moves kind
of slowly. Has a few good ripoffs of other anime series.
Of the two, Lamune DX is the real standout series, probably the pinnacle
of the whole franchise. The basis story is a ripoff of Sailor Moon, which
was also at its popularity peak at the time. Lamune and Da Cider head off
to Puff-Puff Palace to rescue two beautiful barely clothed maidens,
Gold Mountain and Silver Mountain- the Mountain Duo (get it?) This of
course infuriates Milk and Leska, who with a rather confused and unwilling
Cocoa "transform" into the Seinaru Senshi (A pun on "Sailor Senshi"
from Sailor Moon) "Seinaru Milky","Seinaru Cacao", and "Seinaru Lemon".
The three then head after their would-be boyfriends to extract their
If you can only see one Lamune series, this is the one to see.