Niji-no matsubara Sagako

Rainbow Matsubara Sagako (虹ーの 松原 サガコ, Niji ̄ no matsubara Sagako) was a Sagako based on a deer. He was sealed by the Saga Sagako Busters in one of their missions, but unfortunately, Yuko falls weak and is sealed together with this Sagako.

She merges with the Sagako during the purification process and is finally freed from her onion at the end of the manga.

Appearance
This Sagako is in the shape of a fat reindeer that has long antlers. He wears underwear in his lower area. His appearance is based on Sumo wrestlers.

Powers

 * Lengthen Antlers—His only known power is to lengthen and divide its antlers through the dense vegetation of the forest where he was found.

Trivia

 * He is the first Sagako to appear in the entire manga and who starts the events of this by attacking Yuko and weakening her.
 * He is also technically the only Sagako surviving from the final battle by being fused with Yuko.
 * His fusion with Yuko results in her having large deer antlers.
 * The Sagako is named after the place of its appearance, the forest Niji No Matsubara. Nijinomatsubara is a 360-year-old pine forest in Karatsu, Saga. It has a width of 400 to 700 meters, a length of about 4 km and a total area of 240 hectares.

Sagako de Sagako de Niji-no matsubara