City of Sin - Book 1, Chapter 24C

Because of an accident, Max transmigrated to the Lous Land and became a newborn red dragon.

He could’ve just grown up and matured normally, and he would already be at the top of the food chain, but then he obtained the Discipline Makes You Stronger System.

“Congratulations to the host for completing 20 push-ups daily and persisting for one week, bonus reward Red Dragon Physique +100.”

“Congratulations to the host for completing daily swims in the lava and persisting for one week, bonus reward Dragon Breath damage x10.”

“Congratulations to the host for kidnapping one princess a day and persisting for one week, bonus reward Never-falling Golden Gun.”

“Cough, excuse me System, I’m a Dragon, I’m fine without this reward!” Max said hurriedly. Many years later, the name of Max the Red Dragon echoed through the multiverse. Only the mother dragon standing beside tilted her head and said with a puzzled face, “What, what in the world did I give birth to?”

This was a world ruled by summoners. In this world, summoners were the most remarkable existences that took center stage. When the mysterious, higher world was within reach, when the recollection of the glorious Huaxia civilization overlapped with reality, the story of the summoners in Great Flame Republic unfolds…

The planet was invaded by the Tates, and suffered from the devastation of the last ages. In the crisis of survival, some humans awakened powers, and they realised that those mutant beasts could cooperate with their own consciousness and increase their fighting power to two times more.

This kind of animal was called Warpet. Shu Xiaohui was somewhat different from others. When the Tates invaded, he became a hamster and silently felt the presense of another powerful person.

Chen Chengduo watched his companions slowly find their warpet, and wondered where his one was until one day he saw Shu Xiaohui with his mouth full of melon seeds in the corner of the wall…

Others were warpet, his was only just a pet right…

Hamster: You… You don’t look at my small size. I have lucky BUFF!

- Description from Novelupdates

Baek Ain is your typical lazy guy.

He graduated from university at age 22 with a random degree he chose out of boredom and stayed single because fate decided so until that event happened.

“What? Where Am I??”

After a horrible incident, Ain transmigrated to another world. Or precisely to be a villainous and mobs character.

He died countless times because of the world's protagonists, gathering hatred toward them.

“What the fuck! What do you mean I stole your wife? I've been single since coming into this world!!”

“Hero, please save this world.” A goddess is begging me to save her world from the Demon Lord.

“Wait... Begone thot! That Demon King is my younger sister from 69th Transmigration.”

“How dare you!”

A beautiful heroine is hugging me from behind, wishing to accept her feelings.

“Shoo, Heroine! I don't need useless baggage with me. Side characters are better than you!”

And so, Ain's journey began to end this shitty transmigration cycle.