This OVA has introduces things, but explains nothing. God has lost a so-called "Love Treasure", which we will never know what it is. He sends his daughters to look for this treasure, but they go to earth to go to a school and sometimes they go looking for this treasure that he lost. They go to look for this treasure on another planet, where an "Essence of Life" (which we don't know what it is) is introduced, which can give life to anything. On this other planet they meet a boy who calls himself "J.J." who is also looking for a treasure, and they fight against an organizationthat is after the Essence of Life. We don't know who he is, we only know that he studies in the same school as the girls.
It is quoted that not even a human could go to that planet. So who is this boy? Who is that old man who had the Essence of Life? They look human, J.J. studies in a school on earth.
The organization we don't even know what their goals are. They only exist to have a villain.
In the end, this OVA gives you an adventure after the treasure "Love", but totally ignores that, and concludes with nothing but a fight against a random villain who doesn't even have a stated goal.
Oh... and the girls come back to Earth and now work/have a cafeteria... Ok...

The animation is good.
Soundtrack I didn't even pay attention.
The characters are not bad. I even liked Lemon.

I don't recommend watching this anime. It basically proposes something to you, but ignores everything and concludes nothing.