El, Karen

エル・カレン

She is the proprietress of "Tomon Inn," a saloon where she also performs for her loyal patrons. Although she appears to be a refined, defenseless lady, she is actually tough and a shrewd businesswoman, always accompanied by her two bouncers who serve as both her bodyguards and enforcers.
Hazuki is one of her most well-known patrons, not because she is a good-paying customer, but because she frequently owes her a significant debt, which she has to pay off by doing odd jobs for her.