Hiroshi Ryogoku

Newly graduate Yamaguchi Kumiko an idealistic teacher who entered Shirokin High to be a math teacher. Having high hopes for her students, her world turned up side down when she finds out that she'll be teaching the class 3-D the hardest class to take care of. Class 3-D is a bunch of students who looks more like delinquents and trouble makers. The students show no respect to teachers nor a little kindness. Each and every student doesn't like teacher for almost everyone has no good memories of them. The leader of the class is Sawada Shin. He is well respected for there are rumors that he beat a teacher to death. The students try there hardest to bully and make fun of her so she'll quit but all there efforts went to waste because Yamaguchi ain't an ordinary Teacher. Yamaguchi Kumiko is actually the 4th generation heir to Oedo group, a yakuza clan. Even though everyone in there clan wants her to the next leader, she made up her mind and so everyone accepted it.

Set during the Bakumatsu (final years of the Edo period). Sakai Banshiro is a lower-class samurai. Leaving his family behind, he works at the lord’s castle. He consoles and solves worries of the people by making food from recipes sent from his wife.

Narumi has decided to retire from the underworld society with which he has been involved for 20 years. He also informs his colleague and attends his final smuggled handgun deal. Suddenly, shows up and the client is shot to death accidentally. That client was an undercover police investigator, so Narumi is now facing a predicament.