MTL - All The Male Leads Have Blackened - ~ Works related

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

Jeanne was only 18 years old when her stepmother and step sister framed her and caused her to lose everything. She was thrown out of the house by her father for trying to resist.

7 years later, Jeanne came back for vengeance with a mysterious son by her side—George.

People mocked her for being a single mother and called her son a fatherless child.

“Who are you calling a fatherless child? You wouldn’t like me when I’m mad,” George threatened.

“Lay low, George! Don’t ruin the fun! I haven’t had enough,” Jeanne said as she wanted to enjoy her revenge, leaving the boy speechless.

Jeanne later met the infamous Fourth Master Swan at a charity ball. The man with the handsome looks and cold temperament called her to a corner and said, “I like you.”

Everyone was shocked, including Jeanne.

“I’m a single mother and I have a child. Are you sure you like me?” she said.

“I actually… like your child!”

Everyone else was shocked when Fourth Master Swan married Jeanne but only his sly self knew that he had gotten not one, but two, important players to this chess game that he was playing.

After getting hit by a truck in an attempt to chase down his brother's bullies, Alex in transmigrated into the body of a weak mage in a fantasy world called Eldora.As expected, transmigration can never be complete without a golden finger! Shortly after waking up in his new body, Alex awakens the almighty path system.But that wasn't all, a more shocking discovery almost blew Alex's mind away.....System is crashing!! System is crashing!! System is crashing!!!![Due to the system breaking down, several perimeters of the system have been broken. Required exp for leveling up is now fixed, repeatable missions no longer have limits and can be completed continuously even when capped. Penalty function disabled, rewards for missions are now fixed].......Alex's system got broken and a lot of functions stopped working but this was a good thing because Alex can now level up continuously without anything to slow him down.......Armed with such a system, join Alex as he journeys to become the strongest mage in this new world and what his reaction would be after finding out the secret of his system and why it had broken!!

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.