Diamond (2013)

The Kitano-gumi, a long-established Yakuza organization with strong ties to the local community, maintains a popular baseball team filled with former professional players. However, redevelopment plans by the powerful SFF Company are transforming the downtown area into a deserted shopping district. When the chairman of the local merchants' association dies under suspicious circumstances, the Kitano-gumi begins its own investigation, suspecting foul play and questioning the police's assessment of the death as an accident. Their inquiry reveals a link to SFF Company and a new, mysterious group from Kansai called the Fujinami-gumi, setting the stage for a conflict between the two Yakuza factions.