Super Insane Doctor of the Goddess - Chapter 566 - : Exploding the Battleship with One Punch!

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!

After getting betrayed and killed by the only person she’d loved, Miss Shang wakes up in the body of the cowardly crown prince Shang Wuxin, who, due to her own circumstances, was actually a girl cross-dressing as a boy. After inheriting the crown prince’s memories, Shang Wuxin has three things on her agenda:

1. Clean up the house

2. Gather loyal followers and soldiers

3. Get the throne

- Description from Novelupdates

To correct the mistakes of his past, a young man is forced to narrow the space between science and witchcraft, as he ventures on a quest to save his world from complete destruction.

“I’m gonna live with Irene for the rest of my life.”

“….. What?”

“I said, I won’t get married and I’ll spend the rest of my life with Irene!”

I wish I heard it wrong. Regrettably, I couldn’t stop Claudia.

“As long as I have Irene, I don’t need anything else.”

The three men looked at each other, then glared at me with angry eyes.

The insane obsession of The Crown Prince’s possessiveness, the smiling Duke yet something malice hid underneath him, and the cold eyes of The Knight that sent chill to my bones. It’s as if they regarded me as their rival.

“Shit. What kind of situation is this?”