- Mayin Rivaaj, politician in Gandara under Yomi (as for YYH's fanfic/lore) and the chairman of the new Makai Tournament in their timeline.
- Birthdate: April 28th, 1396
- Relatives: Aanya Rivaaj (mother, demon fox), Kenko (father, kitsune), Saanvi (younger brother), Jyo (youngest brother)
- His powers are related to dimensional spaces, but he's also good at witchcraft, and his weapons are several kinds of rings that he changes in each hand with different gems and crystals.
- He always felt, ever since Saanvi was born, that he lived behind the shadow of the younger brother who seemed so brilliant compared to him. When their parents passed away, Saanvi went to live in another town with his soon to be wife and Mayin and Jyo lived alone together. This though, brought many issues, but Jyo wouldn't ever hate his older brother even if he wasn't at all a good person with him.
- When Jyo escaped and went to the spirit world, Mayin first thought he was kidnapped as he couldn't find him anywhere.
- When Mayin first meets Koashura, the god tells him where Jyo really was all along, so Mayin thought that Koenma kidnapped him.
- The contract between him and Koashura (and then involving his family) was originally his idea, contrarily to what many think.
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