Reisen Udongein Mitsuba (Short for Three-series Number, or Mitsushiki Nanbaa)

Reisen Udongein Yotsuba (Short for Four-series Number, or Yotsushiki Nanbaa)

Reisen Udongein Itsutsuba (Short for Five-series Number, or Itsutsushiki Nanbaa)

The three-to-five series are divided by Original Eirin into specific roles according to their function. Of course, they weren't intended as food. The three-series is made to focus on speed. Her ears are small, and her body mass is reduced by removing unnecessary parts. This mass reduction is considered a success. Firepower and endurance, however, were weakened, so the Mitsubas may not be a match for the Inabas in direct combat. Furthermore, their speed cannot compare to the tengu of Gensokyo.

A model focusing on pure firepower. Naturally, she has a sturdy body build to compensate for the increased recoil. Her charged shots are ten times more powerful than a normal Inaba's. Countering groups of soldiers is the four-series' specialty. After all, she's a weapon created to mow down massed troops in the Lunar War. The Yotsubas are slow, however, and thus are at a disadvantage in 1-on-1 battles.

This model is intended for ultra-long-range sniping. She has clairvoyant vision instead of the normal Lunatic Eyes. As her bullets have to travel a significant distance, her projectile speed has been jacked up tremendously, allowing her shots to land sooner. The Itsutsubas usually work in pairs, with the rear one in charge of support. Due to the major modifications to their body, and the nature of their highly-strung jobs along with the heavy workload, the Itsutsubas don't generally get to live long.