Evil and the Bean (邪悪と豆の字 Jaaku to mame no ji?) is the 308th chapter of the manga it is also the first and only chapter of the Evil Oni Arc. Soun, Genma and Ranma are all visiting a local temple to assist with the re-sealing of an ancient, evil Oni. The box it's kept in has grown old and it seems that the creature will soon break it's bonds. Happosai soon arrives and blows his nose on the paper seal that was to be used on the Oni, which allows the monster to escape.