MTL - I Refuse to be a Supporting Character - Chapter 21

A seafood chef inexplicably transmigrated into ancient times. Even though he landed in a family with a nobility rank, and theoretically was supposed to be rich, the most valuable thing in the house is a grey donkey…
Su Yu stared at the sky helplessly; in order to support the family, he could only take up his old profession and go out to sell fish.
Unfortunately, the royal family selected concubines from both genders. Even as a poor noble, he had no choice but to attend…
DISCUSSION TOPIC: Will I be selected if I display my fish-slaughtering skills?
“Meow!” His Imperial Majesty shook his tail.

- Description from Novelupdates

Bai Aoxue, the best mercenary in the 21st century, is accidentally sent back to the Chengxi Dynasty in Great Continent due to an explosion in her mission, and trapped in the first daughter of Prime Minister. After her rebirth, she is set up by her father to marry the 5th prince Jun Yeyan who wears a mask all day long.
In the face of bloodthirsty enemies, discord between brothers, collusion among courtiers and invasion of enemy state, can Bai and Jun resolve the crises? What will happen to their political marriage? How will the fierce battle for the throne end?
With many twists and turns, the book brings you to experience palace revolution, love and hatred thousands of years ago.

- Description from Novelupdates

Jiang Che traveled here and practiced for eighteen years to awaken the sign-in system.“Ding, the host signs in to Snow Moon City, and is rewarded with the inheritance of the Drunken Sword Immortal!”“Ding, the host signs in to Peach Blossom Island, and is rewarded with the Tai Chi Xuanqing Dao!”“Ding, the host signs in to the Yin-Yang Family Residence, and is rewarded with the dual cultivation secret technique Yin-Yang Heavenly Immortal Technique!”With the sign-in system, Jiang Che traveled around the Jiuzhou Continent and stood at the top of the world step by step!Li Hanyi: “Legendary man, look at the sword!”Huang Rong: “Woo woo woo, Brother Che, please let me go…”Wanwan: “My feet are fragrant and soft? My brother-in-law is a pervert!”Jiang Che: “It’s over, the whole Jiuzhou Continent knows that I am a scumbag!”

At some point in the 21st century, the Christian God stopped listening to the prayers of humanity. Monsters with colossal strength and endurance began to emerge and humanity entered its darkest period.