When his mother, Hikaru, starts running marathons, Jun can no longer control his emotions, which he had kept hidden. - The sight of Hikaru stretching and working out in front of him was so erotic and sensual that it disturbed Jun's heart. - I can't allow myself to have lust for my mother...but I can't stop my feelings. - A line of sweat that makes your skin glossy, hair that sticks to your skin, and the faint scent of a female scent. - When Jun was exposed to the pheromones contained in Hikaru's sweat, his rationality began to crumble.