Kuroi Shuuichi

"......Welcome. Sensei. Please take any seat you like."

The owner of the 'Kuroneko' café.
Shuuichi has a decent rapport with the mansion's maids, who hook him up with medicine for his mom. His better half works in the city and returns around these parts during a long weekend or holiday.

Shuuichi mostly keeps to himself, not one for small talk with customers. His daughter Miyako, though? The polar opposite. That's why folks say they're two sides of the same coin, so to speak.