According to what Roxy says, her Shisho is someone haughty and overbearing. But, the Jinas that I know gives off a strong image of being a diligent corporate worker. The Jinas I know doesn't match with the Shisho in the past that Roxy mentions.
"But, what if, when I meet him, he still has a grudge?"
"I'll get rid of the grudge and, if it isn't fixed, then I'll have him forget it.