Baka to Test to Shoukanjuu‎ - Volume 7.5, Our Song by Yoshii Akihisa

Past, present, and future, I will always want you.

Adeline had a plan to obtain her freedom:

Step one: kill the King.

Step two: run away and live happily ever after.

Did that happen? No.

Adeline’s plan was rudely interrupted by a mysterious, yet handsome stranger who stole her weapon at midnight.

Elias Luxton was a heartless King notorious for his merciless antics. He was the monster that lurked in the shadows.

Adeline Rose was a dethroned Princess with a dark past. After her parents’ murder and an super stealing her throne, she flees to the Empire of Wraith and unexpectedly meets Elias.

Elias claimed he knew her. But she didn't remember him. And Adeline wants nothing to do with him.

The problem? Adeline was supposed to kill him, but he wants to marry her.

Will she be able to escape the clutches of this shameless King? Or will she have to face the demons of her past, all alone?

Jiang Bai woke up one day and found with shock that he had transmigrated to a parallel world that is similar to Earth. There, he was granted a cheat system to help him forge the path of a tyrant in this new world. He was now stuck in this parallel world body, the body of a weak and cowardly person. Join Jiang Bai as he rose to the top in this new world!

- Description from Novelupdates

Doctor Jiang Fei, considered closing down the clinic because business was so bad, but unexpectedly his game character entered his body, making him omnipotent.

Not only is he superb in medicine, he also controls the life or death of the flesh bones of the dead person, and just like Yama he snatches people’s life.

He is now proficient in even cooking, playing piano, gardening, and domesticating pets!

People thought this was all of Jiang Fei’s skill, but Jiang Fei would smile and look at the martial arts cheats book. ‘The Dragon’s 18 palms’, ‘Six-pulse excalibur’, ‘Northern Profound Magic’, ‘Lone Solitary 9 Swords’

- Description from Novelupdates

Su Xiao is a cold-blooded young adult who’s seeking vengeance for the death of his family, yet things ended up badly for him.

As he was taking his last breaths, he heard a voice calling him from dimensions, it was a strange system reaching him, asking him if he wanted to be saved, to be Reincarnated.

He just needed to accept a contract, Su Xiao didn’t have any choice but to do so, but he didn’t know what he signed up for!!

Travelling through worlds, doing extremely dangerous missions, collecting special items, levelling up, and even killing Protagonists…

But Su Xiao wasn’t any ordinary Contractor, Su Xiao was a Hunter!

The MC crosses over to: One Piece, Tokyo Ghoul, Naruto, Fullmetal Alchemist, Attack on Titans… and Author’s Original Worlds…