Miyuki-chan in Wonderland

Miyuki-chan in Wonderland (不思議の国の美幸ちゃん, Fushigi no Kuni no Miyuki-chan) is a yuri manga written and illustrated by CLAMP, an all-female manga artist team consisting of Satsuki Igarashi, Mokona, Tsubaki Nekoi, and Nanase Ohkawa. Miyuki-chan in Wonderland appeared as a serial in the manga magazine Newtype from 1993 to 1995, based on the children's novel Alice's Adventures in Wonderland by Lewis Carroll. Kadokawa Shoten collected the seven chapters into one bound volume and published it in September 1995.

Plot
Miyuki, a cute girl, is in over her head. When late for school, she is suddenly transported to another world (Alice In Wonderland style), except that all the inhabitants of the other world are female...and they all seem to be in love with Miyuki. And the world behind her mirror is even weirder.