Senju Kawaragi/Synopsis

History
Senju is the youngest of the three Akashi siblings. Her oldest brother Takeomi was a first generation Black Dragon. She uses an alias because she thinks it's more professional. Her other older brother Haruchiyo belonged to Tokyo Manji Gang. The three of them are known as the "Mysterious 3 Siblings".

She is much closer to her oldest brother while Haruchiyo sees no interest in his younger sibling even though Takeomi endorses her. He doesn't respect her and her strength. Instead he falls under another gang away from his siblings.

Plot
Senju was powerful enough to emerge from the vicious Tokyo's Sengoku Period that occurred after Toman's disbandment as one of the three main victors with her gang, Brahman.

In Chapter 215, Senju stated that Brahman's goal is to defeat Manjiro Sano and his gang.

Senju opted to hid within her gang as they was confronting Rokuhara Tandai and a few former Toman members. As her right-hand man, Takeomi Akashi, remarked how nice it was to be young, Senju surprised everyone throwing her umbrella at South Terano. Terano swatted it aside, which Senju intended, and she used the opening to leapt into the air and launched a heavy axe kick on Terano's head.

Senju beckoned to Takemichi for her umbrella, to which the latter hurriedly picked it up for her. Senju then fearlessly looked up at Terano. Shion Madarame challenged Senju, but he had no idea who she is. Senju was watching as Benkei knocked out Shion and expressionlessly responded to Benkei's admonishment.