Tokyo Pig Series: Sometimes I'm a Pig 晴天下猪系列-我有时是猪

  Tokyo Pig is a Japanese chapter book series written by Shiro Yadama. It is about a third-grade boy who writes in his diary about a pig day, a pig time, and a sunny, then partly piggy day. He finds out the days start happening just the way he writes them. The series is delightfully silly and kids love them. It was so popular that a TV series was created based on Tokyo Pig. This series contains 10 titles.