100% Love From The Boss - Chapter 407 - Romance above the Clouds

Every time he dies, Ethan Hill gains a little more power.Earth was chosen for Integration, but Ethan knows from the second his Trial begins that the Integration is a lie. These creatures giving Earth the 'honor' of access to their Interface want something from Earth - he just doesn't know what.Now he's trapped on an alien planet and lost in a time loop, fighting for strength and for his own humanity.One thing's for sure: He'll die as many times as it takes to tear it all down.

“Young man, your chastity was lost.”

“Σ ( ° △ °|||)!!”

Give up your virginity to save the world! Our motto is–” “I didn’t think it would be bent, la la la la la!”

- Description from Novelupdates

Upon meeting the girl who would become her adopted younger sister, the duke’s daughter Christina regained memories of her previous life. Through those memories, she learned that her new sister, Mishuli, was the heroine of a certain story. And though the story depicted a Christina who abused her sister, the real Christina turned into a siscon who spoiled Mishuli to no end.