MTL - What to Do When I Become a Koi and Fall into the Male God’s Bathtub - Chapter 39 Riding a tiger

Our protagonist Caam is a man from Earth that was reincarnated into this world as a demon. In order to survive, he spared no effort in avoiding the sparks of battle and without noticing it, he became strong himself.

SSR-ranked killer Mu Hui died in an explosion, only waking up to find herself transmigrated into the body of a vicious female supporting character in a book.

Ye Han was reborn into a parallel world and participated in the challenge program [365 Days of Wilderness Survival] jointly organized by the world. At the beginning, he got a BUFF bonus with a lucky value of 9999. With his little cook, Ye Han started a shocking journey of survival in the wilderness.

When the other players were hungry, Ye Han had already eaten seafood. When the other players had no fixed place to live, Ye Han had already built a wooden house. When the other players were precarious, Ye Han was drinking tea in his manor. Ye Han: No way, my luck is 100 million points.

- Description from novelbuddy

Upon meeting the girl who would become her adopted younger sister, the duke’s daughter Christina regained memories of her previous life. Through those memories, she learned that her new sister, Mishuli, was the heroine of a certain story. And though the story depicted a Christina who abused her sister, the real Christina turned into a siscon who spoiled Mishuli to no end.