Snowy_Bright_Star

Every day is a misery for intelligent creatures like humans who don't know what to do with themselves and mess up others but there are foolish humans who take life as a negligible thing and enjoy every moment they have.
But they still have some ethics and bottom lines.
Akira, one of the foolish humans who has the ethics of over respecting women died just after breaking one of his ethics and got reincarnated as a girl in a supernatural world.
Fortunately, the universe gave him a system to guide him.
This is the journey of this boy in a girl's body to complete a mission given by the system while getting teased by the system in every moment possible.
This story has some motivational points that only foolish humans can understand. So if you don't understand it, it's perfectly fine, that means you are intelligent enough to mess up your life perfectly.
Don't misunderstand, the first 2 volumes do feel like Chinese cultivation novel but it's not. Just saying for the sake of informing, this is a mixture of many cultures.

Reverse reincarnation

His whole body started to shiver and he was unable to move in fear.

The alchemist in anger shouted, "How dare yo..." Before he could complete it, he turned his head to Asao in shock where Yuki was holding Asao's neck and he got lifted into the air.

"...u come here?" alchemist just finished his sentence. He became vigilant and used his spirit power. A blue gas-like manifestation like a 1-foot wide cylinder came out of him and went to hit Yuki.

Then a red gas-like manifestation broke it in the shape of a small fist which was more solid, "stay quiet," she ordered and the alchemist got shivers down his spine due to her widened bloody red eyes.

It struck the alchemist's heart in fear, 'she is trainer-level alchemist,' he immediately kneeled and begged, "Please forgive me, master."

He ran away as soon as possible by leaving the student he was supposed to teach. Asao lost hope in living when even an alchemist was scared of someone.

One sided duel