I forgot the title of this manga?

[Megumi]

The story goes like this, the girl is a witch and she wears glasses to hide her cat's ears and tail. She lives with her father and she taught her mother turned into a cat because someone other that her father saw her mother.
There was a boy when she was in kindergarten and she was fond of him and taught that she could trust him. Then she removed her glasses and showed her appearance to the boy..The boy wet his pants(kindergarten) and was seen by the teacher, from then on his classmates called him "wet prince". The girl can also make things levitate if she's not wearing her glasses. During their middle school, the boy and the girl met once again but the boy tries to run away from her because of being scared of her.

The end was that the girl turned to a cat but the boy confessed his feelings and thus the girl turned back but naked-the boy was hugging her and then she dressed herself. The cat that the girl thought was her mother was another witch which was the grandmother of her boy classmate which was also a witch by blood. Her real mother disguised herself and was the girl's teacher..

Sorry for such a long description..it is not tokyo mew mew.
It was only a short manga.

 

[vidya]

Momoko Manual
Momoko is a girl who was born into a witch family in which most of its female members possess magics. Yet they can only reveal their magical capability to "the one" i.e. their soul mate/spouse. The more magic she uses in front of strangers, the more parts of her body would become cat-ish (such as cat ears and whiskers), and if any stranger learns her true identity she would turn into a cat completely--like her mother!
Having joined the magic club in her school, Momoko has used her ability too often that her cat ears pop out every once in a while so she must find "the one" as soon as possible, but her candidates have already become suspicious...

http://www.mangafox.com/manga/momoko_manual/