Kuroge Wagyu Joshio Tanyaki 680-en

 is the seventh single by Otsuka Ai.

Single Information
 was used as the first ending theme for the anime Black Jack.
 * All Lyrics: Ai
 * All Composition: Ai
 * All Arrangement: Ai, Ikoman

CD

 * 1) Kuroge Wagyu Joshio Tanyaki 680-en (黒毛和牛上塩タン焼680円)
 * 2) Honmaguro Nakatoro San 〇〇-en (Midori) (本マグロ中トロ三〇〇円 (緑色))
 * 3) Tsukune 70-en (つくね70円)
 * 4) Kuroge Wagyu Joshio Tanyaki 680-en (黒毛和牛上塩タン焼680円) (Instrumental)
 * 5) Honmaguro Nakatoro San 〇〇-en (Midori) (本マグロ中トロ三〇〇円 (緑色)) (Instrumental)

Limited Edition DVD

 * 1) Kuroge Wagyu Joshio Tanyaki 680-en (Music Clip)