One morning, Tooru woke up from the pleasure of a wet dream. As usual, his mother came to wake him. However, Tooru couldn't bring himself to deal with his soiled underwear and ended up handing it directly to his mother before heading to school. His mother noticed the stain and happily remarked, "So Tooru's reached that age, huh?" The sight reawakened desires she had long forgotten. The thick scent of semen ignited a fire within her. Soon, fantasies of deeply kissing her son and giving him a blowjob began to flood her mind. Then one day, that fantasy started moving toward reality.