The mayor of Sakurami.

He the 11th diary holder. He uses his influence as mayor to take down the other diary holders. His Diary, The Watcher Diary, has the ability to look at other diary entries, whether they are true or not, which leads to his weakness. He is able to move the voters with his words alone to demolish Mother's Home and even convince Deus to remove the First and Second because of their absences. His true goal has later been revealed that he wished to use the 8th's diary to hook up with a super computer, given everyone in the city the potential to becoming a Apprentice Diary Holder to hope to make a new and great kingdom that he will rule. Interesting, the Eighth considers him to be a gentleman.
He is named after Bacchus —the Roman god of winery.

(Source: Wikipedia)