is an 800-year-old kitsune sent from the spirit world to relieve Kuroto from his overworked and stressful life. She proudly goes above and beyond for Kuroto, pampering him Senko loves to pamper Kuroto such as cleaning him, massage, groom and gives him lap pillows to ensure he gets enough sleep. She gets sad if Kuroto prioritizes work over his health. To her dismay, Kuroto seems to have a fixation on her soft fluffy tail and ears.