Blood Shaper - Chapter 27Book 4:

Mana finally arrived in our world after being delayed for unknown reasons, causing the evolution of everything that had life.

Humans, plants, and monsters all evolved, ushering the planet into a new era in which old laws no longer applied and the only law in the world was the rule of the jungle, where the strong preyed on the weak.

It was a question of whether we, the 'rulers' of the land, would be able to maintain our position and adapt to whatever came after our planet's awakening, and if we did, was that the end?

After I was successfully captured by the Sick Princess of the Eastern Continent Empire, my free life came to an end.

“Don’t be so resistant, please be a little obedient? No matter how hard you try, the shackles, collars, and shackles are absolutely impossible to break free, so accept this little happiness early and become a cripple for me. My dear♡.”

This article contains the following elements: sickly tender, reverse push, harem, blackening. If it causes discomfort, please watch it together with your parents.

- Description from novelbuddy

Akira Kuromiya is just an average high schooler who gets killed by a robber. He wakes up and is now a chicken!? Even worse he becomes the familiar of a girl who's apparently the heiress of a powerful clan.

That was for a short while though, as he was abandoned and woke up to find out he, now she, is trapped in a deadly magical forest with all sorts creatures trying to kill her.

The world she finds herself is one of magic and monsters like the manga she's been reading. Akira, now Hinotori is trying to live her life as a chicken in another world!

“Look at you, you were this teeny-weeny when you were little.”Using both hands, Shao Zifeng gestures how small his pet beast used to be. He then raises his head and looks at the gigantic being in front of him.“Just how did you grow into this ferocious form?”