Tracklist: 1. 法則:THE RULES 2. SERVE 3. Extancy (Wumuti&Rui) 4. BACK 2 BACK 5. HIPS (Hyun&Haru) 6. Masterpiece 7. SERVE (Instrumental)
Notes: CD + Photobook (48 P) + Random Photocard (2 P) + Random Mirror Mrsssage Card