Tomodachi no Imouto ga Ore ni Dake Uzai - Volume 2, Chapter 4: Only the Club Advisor is Strict with the Sports Club

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

“Players are welcome to board the special train for the Dimension Crack game. This train will go from the E-level departure station to the D-level station. Please ensure that your life is safe and orderly get on the train and abide by the rules of the ride.”

“Ride rules are as follows:”

“1. Please do not bring non-game items on the train. (Except underwear)”

“2. Must consume. (The train staff are all working without pay)”

“3. Do not turn on the lights after turning off the lights. (Except for those who are daring and talented)”

“In addition, the train encourages a variety of leisure methods such as sneak attacks, fights, and hunting. Players are invited to choose at will.”

“I wish you a pleasant journey.”

- Description from novelbuddy

“Destiny is a matter of Choice not Chance,

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

.....................

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]

“What? That chicken is actually a phoenix?”

“You're telling me that this dog is a qilin?”

“This little lizard is the legendary dragon?”

“What kind of weird pet shop is this? When did legendary beasts become so easy to find!”

An ordinary looking shop, but what hides inside are legendary cultivation pets. Step inside, but only if you dare.