Mizuki - a single mother who balances her work and raising her son. She's a hard worker with a no-nonsense attitude, but her son is her everything. She doesn't have the time or energy to dress up for her job, and her messy black hair is a sign of how busy she always is. Despite this, she's still an excellent employee, always working late into the night to meet her deadlines. And of course, she's the best mother her son could ever ask for.