The Sinful Young Master - Chapter 11: Entering the bedchamber

The protagonist, a famous YouTuber known for playing the game trilogy “Tril Trilo Trilogy,” finds himself possessing the final boss of the game world.Before the release of the new instalment in the series, he receives an offer from the game’s developer to play a prequel, “Part 0,” which explores events that occurred before the first instalment. Since he is a fan of “Tril Trilo Trilogy,” he eagerly accepts the offer.However, through some twist of fate, he wake ups in the world of “Tril Trilo” in the dreadful body of the final boss of the trilogy, a character named Frank Wonderstein.

Liam was a regular high school student who spent most of his days and nights gaming. After a long night of gaming, he woke up the next morning to find a holographic screen floating in front of him.Not only that, but the screen informed him that he must run three miles or he would be punished. Naturally, he ignored it, thinking that his lack of sleep had caused him to hallucinate. The time slowly ticked down while he had yet to complete his quest.He was then transported to a desert, surrounded by wild wolves. He narrowly escaped without being ripped apart, and that’s when a notification popped up.[Congratulations on not dying! For that, your body has made small improvements. You are well on your way to becoming a pro boxer.]With this system, Liam must take on the task of becoming a pro boxer; he must train and work rigorously. Will he succeed? Well, you must read to find out!NOTE: For the system, there will be no power padding or points system. The system’s job is solely to train him.

A good-for-nothing man married a beautiful girl but was kicked off the bed on the wedding night. Furiously, he wrote a bill of divorce and ran away.
He was schemed a car accident in which he nearly lost his life. However, it turned out to be a blessing. He swallowed the soul that passed through the outer world, thus obtained superb medical skills and martial arts.
Later on, with the silver needles and invincible martial arts, he embarked on the road of counterattacks and was committed to his great dreams.

- Description from Novelupdates

There was a Senior Brother and a Junior Sister. One of them was transmigrated to this world and had cheats while the other was the reincarnation of a Great Emperor.