Invasion of the Second Dimension

"I found a Child of Luck in front of me, please do it as soon as possible. The strategy is divided into three steps: kiss, chest, and push."
"I'm rubbing it! Are you a strategy? I'm an upright man, don't force me!
But since you've been by my side all the time, I'll reluctantly take a look at it! "
"Tian Suohui, don't run! I won't do ghostly things,
I just wanted to touch your breasts. "
The spirit of eating halberd, please fall in love with me seriously, the seven magicians, the ambition of Oda Nobuna,
The arpeggios of blue steel, the inferior students of the Magic High School, the Demon High School...

Simply put, apart from doing tasks...
The protagonist trades the virginity of the girls for strength, and the more lucky girls knocked down, the stronger the strength...