A doctor is introduced to an idol named Ai, the front girl of an idol group, by a 12-year-old patient who dies shortly thereafter. The doctor becomes a fan of Ai as well. Four years later Ai, sixteen, goes on a health hiatus and then shows up at the hospital he works at pregnant. The doctor, Ai's manager, and the manager's wife conspire to keep Ai's pregnancy a secret for the sake of her career. One night while walking home, the doctor is confronted by an obsessed fan who asks questions about Ai's pregnancy, but then runs away and the doctor chases him (this doesn't make sense, but anime contrivance I guess). The man gets the drop on the doctor and pushes him off a cliff and he dies. That night Ai gives birth to twins who are the doctor and his deceased patient reincarnated, with their memories intact and able to fully talk to each other in front of adults without them noticing but I guess they can make the adults notice when they want to (anime contrivance). However, neither twin figures out who the other is (anime contrivance). After returning to her job, Ai's career inclines and she gets acting and commercial gigs. Time skip four years later and we see Ai placing a call to the twins' father, who we haven't met yet, in a pay phone for some reason asking him if he wants to meet the children. Shortly after the fan in the hoodie shows up at Ai's house, angry that she pretended to be seiso while actually being a filthy sex-haver with a secret, and stabs her to death, then kills himself shortly after. The doctor realizes the stalker must have been given Ai's address by their father and vows to track him down. The episode ends with a time skip of ten years or so as the twins leave for school.
Nolan, I thought we were clear. Noone lewds Watame on my watch. 
