After a month of immersing herself in an atmosphere of liking her mother, she continued to have sex with her irrational mother, resulting in pregnancy. (Hime Mitsuki, DASS-423)

Hikari lives with Ryuta. Ryuta's friend even says, "I wish my mother were as beautiful as you." Ryuta also begins to strongly realize Hikari's womanhood. One day, Ryuta is caught by his mother masturbating with her underwear. From then on, they both keep telling their mother they like her. Pampered, Hikari also begins to like Ryuta and starts pursuing him relentlessly…