Lily Bell, who lives alone in the forest, one day encounters
a young beastman named Tail, who has collapsed on the street . Lily nurses him to sleep, but when he wakes up, he has lost all memory of what happened before he collapsed. Lily promises to let Tail live in her house until his memories return . However, as she spends time with the gentle, gentlemanly Tail, Lily gradually becomes attracted to him and develops a faint crush on him. Before long, his memories never return, and she begins to wish for him to stay by her side... This is the story of a petite protagonist who has a lewd mark carved into her uterus by a young beastman, who makes her orgasm repeatedly despite her lack of sexual knowledge, and who then remodels her body to accommodate him. Contains cross-sections, a bloated belly, and some light scat.