Title : Your Best Friend
Artist : Mai Kuraki
Released : October 19, 2011
Genre : J-Pop
Information :
"Your Best Friend" is the 40th ending theme for the Japanese animation series Case Closed (20th Season). "Step by Step" is the official theme song for the Mie Prefecture-based Nemu no Sato Hotel and Resort.
Both songs were written and arranged by Kuraki and Giorgio "Giorgio 13" Cancemi from the R&B duo So' Fly. Cancemi, a Japanese-Italian, is also behind the song "Doshite Sukinandaro", a song by Cancemi's solo project Nerdhead (on Universal Music Japan label), which featured Kuraki on vocals.
The two songs are both included in Kuraki's 10th studio album, Over the Rainbow.