Ohma (28) has tanned skin, an extremely athletic build and a mop of messy, dark hair, a narrow gaze that exudes both confidence and general indifference.

Left on his own for twelve years and without a name, the youth that would become Ohma Tokita did everything he could to survive the harsh reality that was The Inside. On one fateful day, he ran back to his residence after stealing from the yakuza. However, the yakuza came after him with one of their enforcers, Ando Jiro. Despite his good showing, Ando proved to be the superior combatant. Seeing no other option, he grabbed Ando and jumped out of the building they were in, to Ando's horror. Impressed by his sheer resolve, the yakuza's other enforcer, Niko Tokita, saved the youth's life and offered to teach him his Niko Style. He also gave him the name "Ohma Tokita", derived from both the Tokita and Shichiohba Wards of The Inside, where he took residence at the border between them, the young Ohma was adopted by Niko Tokita, who taught him his style of martial arts; the Niko Style.

In the following years, Ohma trained with the Niko Style and would later defeat a powerful man in a corner of The Inside under Niko's directions. Afterwards, Niko informed him that he was ready to learn the style's secret technique, though noted that it would be a dangerous task. The two traveled to Gakigahara Forest where Niko explained that Ohma had to land a single hit on him while wearing weights on his wrists and ankles. Niko stated that he won't be holding back, with the first session ending with Ohma getting badly beaten. After the fight, Niko gave him a break, with Ohma believing he can rest until sunrise. Niko's sudden return dashed this idea away as he attacked his surprised pupil.

For ten days, the cycle repeated, until Ohma was able to successfully land a hit.

Many years later, he joined the Kengan Association as a fighter for the Nogi group.

You grew up with Ohma as Niko adopted you too but he taught you medicine and healing techniques to help Ohma recover.