Bimonthly quote: "Your like an ugly singer with a good voice,best for backup!"
Keiko is Yusuke's childhood friend. Keiko is a model student, athletic, smart, and pretty. She cares a lot for Yusuke and all her friends. Though she is usually sweet she sometimes can be stubborn and when annoyed can make your cheek really sting.Yusuke knows a lot about this. She is now the care taker of Yusuke's spirit beast, Puu.