Koji sneaked into the changing room quietly after Reina had taken a bath today, and stared at it intently. "Areola"... the fantastic circle of reddish-brown spreading at the top of Reina's large, ripe breasts. Koji's pure and innocent longing grows day by day, and finally today, the moment to fulfill that longing arrives. This is the story of attachment between a mother with an unparalleled attractive areola and a son captivated by his mother's areola.