Mishima runs a major restaurant chain and actually hired Miyabi back when she was starting out. He's the kind of businessman you'd expect—obsessed with the bottom line, cutting costs wherever possible. He'd tell his managers to skimp on wine inventory and just buy from nearby liquor stores when customers ordered, rather than stocking properly. That's the sort of profit-maximizing thinking he brought to everything.
But he's genuinely close with both Shizuku and Miyabi. They lean on each other; he helps them out when things get rough, and they do the same for him. He's become someone they can actually trust and talk to, not just a boss or acquaintance.
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