My name is Sayuki Natsume. Ever since I lost my husband at a young age, I've been determined not to fall behind other families when it comes to raising my only son, Minoru. I visit his study every single day, personally guiding him through his lessons. However, between Minoru and me, there's a deeply shameful secret that we can never reveal to anyone else—our daily, intimate habit of breast fondling. Ah, driven by these overwhelming emotions, once again I draw close to my son, sharing another warm and tender moment together.