Tomodachi no Imouto ga Ore ni Dake Uzai - Volume 1, Chapter 5: My friend’s little sister is only breasts towards me

I am serious about saving people, I am professional in protecting people, and I like hunting for treasures. . . .

Emergency doctor Lu Fei was forced to travel to a small town in the United States in a parallel universe, got the rescue system, and became a legal mercenary by chance.

As a real man, you must always cut open people’s bodies to save people from danger; you must often fight and kill, and use thunderbolt methods with compassion!

- Description from novelbuddy

Su Ran, a music prodigy, woke up transmigrated into a book.

At that point in time, the main story arc in the book had already been completed. As a villainess female supporting character, not only did she need to take over the original owner’s pitiful life in poverty, she also gained an instant son right at his rebellious period.

Ten or so more years from then, the son would turn into a twisted, evil villain. He would appear in one of the extra chapters to pick on the male and female lead’s children.

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Su Ran: Son, you shouldn’t be too outstanding.
Su Han: Why not?
Su Ran: ’cause you will be killed.

Su Ran: Son, would you like to learn music from me and become a zen, little fairy boy who only needs to drink dew.
Su Han: No, I want to go into business so I can support you.

- Description from Novelupdates

Kevin Duke, an 18-year-old martial artist, by accident, is reborn an becomes a high school student who was kicked out of the family. Since then, this king of Kung Fu in school has been sweeping all kings of enemies. The whole world is shaking behind him. P.S. This book has been prepared for many years. it's a total wonderful story. The author has related writing experience for more that 8 years. Recommend heartly!

Kyle was just an ordinary gamer until a truck-kun decided he was isekai material.Waking up in the world of Path of Transcendence—a novel he once read—he realizes he’s not the hero, the villain, or even a side character.He’s an extra, someone who was never mentioned in the story. But this world is no fairy tale: it’s cursed, doomed to fall to demons, with every major character destined to die.However, Kyle isn’t as ordinary as he seems. Blessed by the Roaming Storm, a mysterious and powerful force, he wields the rare ability to command lightning, wind, ice, and water.But is he truly just an extra, or is there more to his role in this doomed world? Armed with his knowledge of the novel and his newfound powers, Kyle must find a way to survive in a story that wasn’t written for him.Can he become the missing piece that changes the fate of this world, or will he be crushed under the weight of a plot that doesn’t even know he exists?