Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 15 - 15-36. Divine Punishment (5), The Forbidden Knights

A tree of 10,000 flowers, the world is the door.
The spells change a lot, but the hearts of the people are unchanged.

- Description from Uukanshu translation

“Heaven's Taboo Doggy Technique”Living his life as a cripple, Xuan never expected anything good in his life; however, the day he discovered a secret library in his sect, he was able to walk into a parallel world.A different world, a modern world of cultivators and his world.The library of taboo techniques awaits Xuan again: the milking technique, doggy technique, dual technique, or sword art technique—every technique in one library.He can now use every technique to boost his cultivation above the gods themselves. Goddesses want his immortal white juice, mothers want his body renew techniques, step-siblings want his meat raw. Xuan's body was the pinnacle of taboo in both worlds.The fucker of mothers, stripper of daughters, and the founder of all techniques—it was only a matter of time.

Traveling through the world of pirates, he also became a noble Celestial Dragons.Lakeman just wanted to enjoy a luxurious life.Unexpectedly, as soon as he attended an auction, he met the three Boa sisters who had just been captured, and the binding system was awakened at the same time.If you bind a genius, you can get the other person's daily practice feedback.【You have bound Boa Hancock.】【You have bound Borsalino.】[You have bound One Piece’s deputy, Silvers Rayleigh.】【You have bound Doflamingo.】“Originally, I just wanted to recruit talents from all over the world, but why are there more and more beautiful girls?” Lakeman looked at the group of beauties beside him and fell into deep thought.

It all started when a minute before we began morning activities, something suddenly occurred. The floor started shining a dazzling light, the shining expanded in an instant, and 30 classmates, including me, were laying on top of a place we didn’t recognize.