Just friends. I've been telling myself that to deceive myself. But actually, I secretly have feelings for them as the opposite sex...! Romance of stepping up from friends to lovers is depicted in the SILK pre-release works "焦がれたくちびる", "かえってきた王子様", and "プロミス・アゲイン" included on DVD. The DVD also includes special footage of making-of & off-shots!
