The Female Supporting Character Outshines the Female Lead - Chapter 13

Xia Yan passed through to the world of Bleach and became an eleven-year-old boy. He was rescued by Renji and Rukia in the Seireitei, and he was studying at Shin’ō Academy, and he was a student of the same class.
He is a top student of the Shin’ō Academy, and he is vying for strength by various teams. In the end, he has entered the first team of secret mobile maneuvers.
He will use punishment to kill every person who tries to threaten the martyrdom and protect his loved one.

- Description from Novelupdates

Cheng Yan transmigrated only to end up in a medieval Europe like world, becoming Roland, a Royal Prince. But this world doesn’t seem to be the same as his former world, despite some similarities. Witches are real and they actually can use magic?

Follow Roland’s battle for the throne against his siblings. Will he be able to win, even though the king already declared him to be a hopeless case and with the worst starting situation? With his knowledge of modern technologies and the help of the witches, who are known as devils’ servants and are hunted by the the Holy Church, he might have a fighting chance.

Now, let his journey begin.

“Destiny is a matter of Choice not Chance,

It is not a thing to be waited for but a thing to be Achieved”

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The story sets in a mana blessed world, Planet Vermillion, where every being possesses a System.

At the edge of his life, Zero, a man without a System, finally loses everything and embraces his death with a tired yet relieved expression.

As if by fate, the owner of the system approaches Zero through a screen and gives him a chance to connect with the System, however Zero denies it in exchange for a chance to change or undo all the mistakes he has done in his life.

The owner of the System accepts Zero’s wishes but at a certain price and sends Zero back into the past.

Still without a System, but with the knowledge of the future and various skills honed over the years, Zero begins his new journey to change everything he could.

Save everyone who needs to be saved and kill everyone who needs to be killed.

However, the more he moves forward, the more he realises that the ‘truths’ which he had known in his previous life are much more complicated than what they seem.

Balancing his previous beliefs and the new found mysteries that could shatter his perspective, he still keeps moving forward despite things getting more chaotic with every step.

As if fate itself wanted him to fall, an unknown disaster approaches him from behind and a familiar screen comes in front of him

[Ummm… Zero. It might be a bit late but… Looks like I have messed up big time]

There’s nothing that Yu Wan has in common with her new neighbor– whether it’s charisma, personality, or cooking skills– other than that they both own dogs. Their two cute pets get along well (a bit far too well) and start what seems like a rocky friendship between the two; however, Yu Wan has more important things to worry about. Her wildly popular novel is about to take off into a drama adaptation, but the handsome, mysterious, and callous neighbor- is the director?!

Shen Qingzhou (as he thinks of someone): I’d say three. ]

- Description from Novelupdates