- His epithet, Juzumaru Tsunetsugu, comes from one of the Tenka-Goken (天下五剣, Five Swords under Heaven), classified as an Important Cultural Property of Japan.
- According to Doujikiri, he's a very good listener.
- He's a very big eater (he once ate 80 dishes in a kaiten sushi place), but his hobby is bowling.
- He's the son of the owner of a rice store.
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