(Not an overpowered protagonist, not a harem story. Use your brain when reading the blurb.)
The cycle of reincarnation is a mixed bag, with a loser shut-in called Long Aotian. Movies and martial arts may be flashy, but the girls only love anime.
The Infinite Main God System is strong, and the starting world is a backwater where you scrape by. The Academy of the Apocalypse is the beginner's village, and Saeko's bouncing breasts are your introduction.
A somber melody recalls childhood, while Yuzuriha Inori is an idle, shining vase. The household pet must be butchered, and the pig from Haruyuki has a date with the blade.
Mikasa advances, while Eren is bullied. Black Bullet sets the souls of little girls ablaze. The Berserker awakens in the Holy Grail War, and Sakura is saved by killing Worm Grandpa.
Pick any Magical Index or Railgun world you like, but Touma's harem must be reduced. In the hot-blooded worlds of the Big Three, women are unwanted and get trampled…
They say you can write an Infinite Flow novel by following the formula above…
P.S. The first volume is very likely to put you off. I'm a sensitive author, so if you can't stick with it, just leave quietly. Please don't leave comments about it.
Because I already filled in the plot holes from the first half in the second half of the first volume…