Ida is an express messenger roaming Shinshu Field. He has a brother, Hayate who is the express messenger of Ryoshima Coast. A curse put upon him by demons as a prank prevented him from moving but a Traveler’s Charm lifted the curse and Ida was able to continue with his deliveries.
Ida challenges Amaterasu to a race after witnessing her speed. His pride is broken after being beaten three times and gives Amaterasu the 'Gimmick Gear' he promised as a reward.