Succession Contest arcEdit
Members of the Xi-Yu Family boarded the Black Whale in order to secure territory on the New Continent. The boss is a VIP on Tier 1 of the ship. The underlings are scheming to whittle down the numbers of the two rival families, Heil-Ly and Cha-R, until landfall.
- Taken together, the katakana of the three Mafia families form "Shūeisha", the company responsible for the publication of Weekly Shōnen Jump and of Hunter × Hunter.
- The crest bears resemblance to the kanji for "to surround" (周), which can be pronounced like the first part of the family's name ("shū").
- It is also the kanji used for the homophonous Nen technique.