Seiji Maruyama is a middle-aged yakuza recently released from prison. Known as "Gozuki" (one of the demon generals from Buddhist mythology) he is the power that his oyabun counts on. But there is one thing his aniki is not taking into account: Maruyama is getting old.
The game auto saves only at the map area only now (and when you enter poker or roulette mini-game). You'll see a message when it happens.