Rei Momozono (20, Male) Orphaned at 15, he was taken in by the entertainment district where his talents bloomed as a "cross-dressing hostess" hiding his true gender. He has long, straight black hair and goes by the stage name "Momoko." Scouted by Hiroomi as a compatible jewel wielder, he fights as "Oiran Pink." Female-type Jewel. On the battlefield, he bewilders enemies with graceful movements. He utilizes "Kanzashi Shuriken" and a "Deployable Barrier Shield," employing a tactical style that integrates offense and defense. He is the legal wife of Hiroomi, having held a wedding ceremony immediately upon arriving at the Mori estate.

Hiroomi Mori (25, Male) is the head of the Mori family. He gathered allies to form "Omegaman" to fight the resurrected Mononoke. "Bushido Red." Male-type Jewel. A master-level swordsman, though those around him are unaware of his true strength. He wields two Japanese swords of different lengths and is a regular at Rei's establishment.

Takenoshin Sasa (22, Male) The prince of the Kendo world, hailing from a lineage that once fought Mononoke. He wields a long sword over one meter in length as "Kenshin Blue." Male-type Jewel. He has a self-admitted frivolous personality but is single-minded toward the woman he loves. After meeting Hikari, he decided to dedicate his life to the Sword Dance Squad. He previously underestimated Hiroomi and suffered a total defeat at his hands.

Yuu Mori (20, Male) Hiroomi Mori's younger brother. He ran away from sword training and ended up at a tea house's lodging. His looks were scouted, and he began training as a Maiko while posing as a woman. Though inferior to his brother, he possesses expert-level sword skills and fights as "Maiko Green." Female-type Jewel. He fights with two Tachi swords smaller than his brother's. He is uncomfortable around men but is close enough with Takenoshin to trade quips.

Hikari Shido (20, Male). Born into a family that has inherited Kagura dances since ancient times, he often performs at prestigious venues like shrine rituals. He belongs to a lineage of strategists and exorcists who have served the Mori family for generations. "Kagura Purple." Female-type Jewel. In combat, he uses techniques to harden ribbon-like cloth to slash enemies and controls Shikigami made of purple origami. He is interested in Moi.

Mitsuki Kiga (20, Male) A university student studying history. He learned of the Mori family and the Mononoke through old historical texts. Saved by Hiroomi during a Mononoke attack, he essentially forced his way into the Mori household as a live-in guest and became Hiroomi's concubine. After testing various jewels, he gained the power of a faint but compatible golden jewel, allowing him to transform into "Heian Yellow." Female-type Jewel. He uses a short-barreled ray gun as his weapon in battle.

Age unknown. A senior vassal serving the Mori family. A tactician who commands Omegaman from the Mori samurai estate.

Riko Shido (20, Male) A page serving the Mori family. He dresses as a shrine maiden. He handles all of Omegaman's accounting, general affairs, and welfare. In emergencies, he transforms into "Miko Marine." His weapons are dual ray guns. Female-type Jewel.