After being dumped by his girlfriend and struggling to heal his broken heart, Hiroki turns to his beloved aunt Kumi for comfort—the kind, gentle woman he's always admired. Kumi has always been supportive of Hiroki, but this time she decides to cheer him up in a more intimate way, gently stroking his cock. Her warm, careful touch slowly begins to stir emotions deep within him. Though initially hesitant, Hiroki soon finds himself captivated by Kumi's expert, slutty skills, becoming irresistibly drawn into a forbidden passion from which there's no return.