Like a Dragon Prologue (2006)

In 1970sera Japan three children Kazuma Kiryu Akira Nishikiyama and his younger sister Yuko Nishikiyama are raised together in Shintaro Kazamas Sunflower Orphanage In the summer of 1980 Yumi Sawamura a young girl whose parents were accidentally shot and killed during a gangs shootout joins them in the orphanage Following a yakuza tradition the honorable Kazama secretly raises orphans whose parents he has directly or indirectly killed In return the children love him as a father and he eventually inducts the teenage Kiryu and Nishikiyama into the Dojima Family a Tojo Clan affiliate of which he is a senior officer