Title: 朝と夜の物語/Asa to Yoru no 'Roman'(monogatari) Original Artists: Revo of 'Sound Horizon' and a girl from the 'Fiction Junction' project of Kajiura Yuki. Album: 5th Story 'Roman'
This is a nice light song from KAITO, found it recently but only decided to add it here just now.I'm surprised I haven't got wind of this in Youtube until now when it's been there since 2008.