Heroic Chivalry: The NTR Legend - Chapter 20: Invincible (18+)

Satou Shiki a Japan present-day university student suddenly one day he got attacked by a slasher when he open his eyes he was already transferred to another world’s labyrinth city. In that another world he who was awakened to do a lot of “things”.

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.

The genius pharmacist transmigrated into a pitiful farm girl’s body. Ignored by her own father, abused by her stepmother, and bullied by her stepbrothers. Her “twin” brother was given to distant relative and she went as the “extra” to live under someone else’s roof.

Luckily she possessed mad apothecary skills. Collecting herbs, plowing herb fields, formulating medicines and treating the ills, she refused to live an ordinary life as she slowly uncovered the truth of her real identify.

Inadvertently, she saved a dashing man who was in reality a big, bad wolf hiding under the skin of an innocent little puppy. He pulled out all his tricks: I have no other means to return your favor of saving my life. What say I repay you by marrying you?

- Description from Novelupdates

When I cleared the final chapter of a game that was a national failure, I became an unnamed side character in it.

A non-standard, unmeasurable, EX rank supporting character.