Nanomancer Rising: Divine Alchemist Reborn as Academy's Worst Teacher - Chapter 2: You are coming with me!

The boy who Sneaks in My Bedroom Window

Song Cheng transmigrated and became a blind errand boy in a medicine shop in a remote town.Fortunately, after he found a wife who did not disdain him, his “Golden Finger” also followed.Demons and ghosts roamed the Chaotic World, Profound Techniques went with Occult Sciences, Divine Weapons dazzled the cosmos, the Yin and Yang were inexhaustible.Song Cheng did not seek to dominate as a king, he simply wished to live his life well....This is the story of a person with Longevity, who walked through long years and witnessed innumerable Dynasties.

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!

When she woke up, Lake returned to the classroom of the third year. The classmates were in class with swords and sticks, and the teacher became a female Taoist.
The little fat man in the back seat, how to put two big hammers under his chair.
Rick found this to be a global era!

- Description from Uukanshu (translated)