A Couple of Cuckoos has released the preview for episode 5. As a result of Nagi taking the first place spot away from Hiro in the previous episode, both became closer than ever before. A new student also transferred to their school and Nagi is very familiar with her.
Episode 5 will air on Sunday, May 22, at 1:30 AM JST. It will be available to stream on Crunchyroll and Bilibili. Studios Shin-Ei Animation and Synergy SP are animating the anime. Yoshiyuki Shirahata is directing with Hiroaki Akagi as the chief director. Yasuhiro Nakanishi is writing the scripts, Aya Takano is doing the character design, and Rei Ishizuka is composing the music.
The anime is adapted from the manga written and illustrated by Miki Yoshikawa. Kodansha Comics is currently publishing the manga in English and describes the plot as:
16-year-old super-studier Nagi Umino, second-year student at the Meguro River Academy high school, was switched at birth. On his way to a dinner to meet his birth parents, he accidentally meets the brash, outspoken, Erika Amano, who is determined to make Nagi her fake boyfriend as she never wants to actually marry. But once Nagi makes it to dinner, he finds his parents have decided to resolve the hospital switch by conveniently having him marry the daughter his birth parents raised…who turns out to be none other than Erika herself!