Wait a goddamn minute
Spica is a binary star.
That's often grouped in with two other stars, Arcturus and Regulus, forming a triangle.
HOW LONG AGO DID THE AUTHOR COME UP WITH THIS?
The ending went bananas since Boichi obviously couldn't decide when to stop with the idea of exponential intelligence/power increase.
Still, it was fun. I had fun reading it.
Even with 5 identical characters, it managed to avoid or mess with the majority of dumb cliches with this kind of harem setup, and every damn character was lovable in the end.
Dumb tomboy wins, 10/10