Regular edition 1. Chou happy song (Single ver.) 2. Chou happy song 3. Because happiness (Berryz Kobo) 4. Shiawase no tochuu (°C-ute) 5. Chou happy song (Single ver.) (Original karaoke) 6. Chou happy song (Single ver. with Berryz Kobo vo.) (Original karaoke)...