Maiden of the Needle, Vol. 3 (Manga)

Yui has displayed her formidable blessweaving ability, and is now the head of House Nuir. Yui reads through the contract with the spiders formed long ago by the house's founder, which she plans to rewrite. To her surprise, it's written in a language that only Yui, who came from another world, should be able to read!?