Shi-san!!!
Shigure is naturally easy-going, making Yomei easier to deal with if she's around. She gets upset when people fight and loves reading.
Shi uses nerve pinches as her attack tool.
Shigure was born on the same day as Yomei. She had been born to low class parents, but Yomei claims "So? Does it change you?" and she has nothing to say about it further. When they were 10, they realized they were born on the same day. Shi was ecstatic and celebrated their birthdays together! When they found out about the greedy uncle, Shigure took Yomei to her dojo and they trained, along with Shi's cousin who taught them nerve ending punches, for around 2 years.