Buka ga Positive de Nakitai

Suzumi Kirinomiya is a 36-year-old woman who doesn't live for love or money, but devotes everything to her company. 22-year-old Marumi Arashiyama joins the company where Kirinomiya works as a new employee. Arashiyama is Kirinomiya's first "student," but she is a positive junior who doesn't get discouraged even when she fails... This is a work comedy about an extremely serious boss and an extremely positive new employee.

Source: Natalie, translated