The Housekeeper Kuromi Won’t Forgive Rotten Families

家政婦クロミは腐った家族を許さない (original title)

Synopsis

Kiyoka Kuromi, a housekeeper with a hidden agenda, is determined to create the "ideal family" at any cost. Assigned to the seemingly perfect Haibara family, she quickly bonds with them, but her obsession drives her to take increasingly extreme and unethical actions in her pursuit of perfection.