For the file , please note that Season 1 of the anime only consists of 12 episodes. The file likely refers to Season 2, Episode 7 (which is Episode 19 of the overall series), titled " Birthday and Girlfriend " . Episode 19 Synopsis: " Birthday and Girlfriend "
: Mami begins following Kazuya’s grandmother on Twitter to gather more information about his private life. Series Context
: After being dumped by his girlfriend Mami, college student Kazuya Kinoshita uses a rental app to hire Chizuru Mizuhara. A series of lies to their families forces them to maintain a fake relationship.
The story focuses on the aftermath of a drinking session where Kazuya struggles with a severe hangover and fragmented memories.
: As Ruka’s birthday approaches, she demands to spend the day with Kazuya. Meanwhile, Kazuya learns that Chizuru's birthday has already passed and feels guilty for not celebrating it.