キィ

A male DearS exchange student who goes to the same school as Takeya's sister Natsuki. He is something of a black sheep amongst the DearS colony and is generally soft-spoken. It is perhaps for this reason that he is considered the DearS' diplomatic negotiator, and is often sent on assignments to clear up various mix-ups and solve sensitive DearS-related matters, including bearing witness to a duel between Ren and Miu and retrieving the forgetful Nia from Takeya Ikuhara's apartment. His passive nature causes him to be abused by the son of family with whom he is living until Takeya's words of encouragement boosts his confidence and provides a clear definition of a friend, which in turn help hims stand up for himself to stop the abuse. He stays behind on Earth when Io takes many DearS with her into space. Of the DearS that have an affinity for Takeya, Khi is the most level-headed among the group and is able to understand and accept his feelings.