Akita Shoten has opened the 25th anniversary project site of Keisuke Itagaki's martial arts-themed manga series Baki, and announced a newly-produced OAD (original anime disc) will be bundled with the 4,190-yen limited edition of the 14th tankobon volume of the ongoing fourth installment Baki-Dou to be released on December 6, 2016. Pre-orders will be accepted till October 6. The franchise has been adapted into anime twice in the past, one volume OVA in 1994 and 48-episode TV anime in 2001, both were based on the manga's first installment Grappler Baki (1991-1999).