Kisaki

Kisaki is the childhood friend of the protagonist's older brother, one year his junior, and the sole proprietor of the maid café 'Kisaki-cha,' where she also works the floor herself. Recognizable by her signature black twin-tails, she radiates a cheerful energy that masks a surprisingly calculating mind—she routinely tries to monetize photos of the twin sisters or use them as bargaining chips. Impulsive and unapologetically self-serving as she may be, she genuinely looks up to the older brother as a surrogate sibling, and her lively presence keeps the story's atmosphere light and entertaining.