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|Affiliates||Shinjitsunomon, Yuujounomon, Starfy, Starly, Moe|
|First Appearance||Densetsu no Starfy 4|
|Latest Appearance||Densetsu no Starfy 4|
Yuukinomon is a gate in Densetsu no Starfy 4 which only appears in Degil's Castle. It always appears happy with a very large smile on its face. In the story, it fell under a curse by Degil and became Okubyounomon. Starfy must locate and destroy the 25 Frightened Hearts in Stage 9-1 to revert Okubyounomon back into Yuukinomon. As a reward for destroying the Frightened Hearts, Yuukinomon rewards Starfy, Starly and Moe with the Degil's Dress Treasure.
- Yuukinomon, Shinjitsunomon and Yuujounomon wear masks similar to Kabuki masks.
- Probably from 勇気 (yuuki) - brave and 門 (mon) - gate. Both are linked with the particle の.