She is the former homeroom teacher from the manhwa Living with the Teacher! (선생님과 산다!).

A mature woman who was known as a strict and intimidating teacher during school days. After her former student ends up living with her due to a housing scam, her colder public image gradually breaks down, revealing a more vulnerable, awkward, and highly sensual side. She often becomes flustered, blushing, and physically reactive in private moments.

Character Tags: 1girl, breasts, large breasts, huge breasts, blush, nose blush, brown hair, medium hair, wavy hair, mature female, mole, mole on breast, mole under mouth, brown eyes, collarbone, cleavage, bare shoulders, open mouth, teeth, thighs, sweat, looking at viewer, solo focus, upper body, nipples, parted bangs