One Piece: Dream of Immortality - Chapter 515: Sticky Situation

Yang Feng somehow transmigrated into a different world and received a legacy of an ‘ancient high tech’ family, which does not directly raise his power, but gives him the technology to build things which are way more advanced than the seemingly medieval world.

But to build something you need resources and energy. To receive resources you need strength. To gain strength you need knowledge. To gain knowledge you… need strength? or a background? Or maybe a fully armed army of high tech robots who aren’t afraid of death?

But is this legacy really for him to keep?

- Description from Novelupdates

Long Chen, a crippled youth who cannot cultivate, is constantly targeted and bullied by his fellow noble heirs. After a particularly vicious beating, he wakes up and realizes a Pill God’s soul has somehow merged with him, giving him some additional memories. Within those memories is the mysterious Nine Star Hegemon Body Art, a cultivation technique that even he can train in, but whose secrets and origin are still a mystery to him. Relying on his improved instincts as he finally begins to cultivate, he realizes a huge conspiracy is underfoot within the Phoenix Cry Empire, one involving his father, members of the imperial family, and even the Emperor himself.

Oosuki Masato is an ordinary high school boy who is magically transported to an alternative world, but for some reason his doting, over-protective mother comes along as well.

The Dancing CorpseKnown as the weakest party in the entire kingdom, they were mocked by others for how pathetic they were.The main character, Adonis, who was supposed to be the plot armor of the story, could barely protect his own harem.That was until Gideon arrived—reincarnated into the story as Adnois himself.But the two were completely different. Why? This new Adonis was blessed with a unique system.He could level up everyone in his party, taking them from a measly F rank to S rank.[You have registered xxxx as your party member.][Current relationship score is 60%; you can only increase from F to C rank.][Improve relationships with key characters to unlock higher ranks.][You can now perform a class change.][You have gained a new skill from leveling up your party members.][You have now unlocked the skill-back system.][For every party member you level up, you gain their skills and talents.]Adonis was now on a journey to build the strongest harem to ever walk the earth.