Tsuyu

is a young, beautiful princess in the Kingdom of Kai who married a lord possessed by a toad demon, Tsukomo.

Rumors abound in the villages that the lord has been possessed, having beautiful young girls delivered to the castle who are never heard from again. While InuYasha and Kagome arrive at the caste to search for shards, Nobunaga joins them in search of the princess, whom he is in love with. They are shocked to discover that everyone inside is asleep, including the princess, who is awoken by a bite from Myoga.

Princess Tsuyu explains that her husband has changed and has been acting very strangely. The lord arrives with bandage all over his face, but when InuYasha rips them off, it is revealed that it is the toad demon in disguise. The demon quickly takes the princess to his lair, intending to feed on her, where she sees all the other young women sealed inside frog eggs. Tsuyu is soon encased in an egg, but is released by Nobunaga.

Kagome is able to drive the demon out of the lord using fire (a flame and her hairspray) with InuYasha taking the shard. Tsuyu is grateful the their help, and returns happily to her husband, much to Nobunaga's dispair. Nobunaga believes that Tsuyu was his true love, however her true love was her husband.