He went to Café Poirot where he is attached to Azusa which he always comes to beg for food in the evening. The owner of Café Poirot gave him the name Taii which means "Captain" in Japanese. That name is a reference to Poirot's friend "Captain Hastings".
Taii is a very smart cat and only runs of when there is trouble. He is still a baby and is quickly attached to someone.