16-year-old super-studier Nagi Umino, second-year student at the Megurogawa 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!
A Couple of Cuckoos (Season 1)
You're going to be my boyfriend. (Episode 1) 8.0
Writer: Yasuhiro Nakanishi
Air date: 2022-04-24
Runtime: 23 min
Overview: Umino Nagi was swapped with another child at birth. He’s going to meet his real parents today, but on his way to school, he meets a girl who is threatening to die to get out of her engagement.
I'm not going to marry you. (Episode 2) 7.2
Writer: Yasuhiro Nakanishi
Air date: 2022-05-01
Runtime: 23 min
Overview: Nagi and Erika are now engaged, but Nagi can’t wrap his head around how loaded Erika is, and Erika seems to have concerns of her own.
You aren't going to beat me!!!! (Episode 3) 7.7
Writer: Yasuhiro Nakanishi
Air date: 2022-05-08
Runtime: 23 min
Overview: Living together with Erika gives Nagi an opportunity to focus on exam prep, except when they run into trouble.
Would you please go out with me...? (Episode 4) 7.3
Writer: Yasuhiro Nakanishi
Air date: 2022-05-15
Runtime: 23 min
Overview: Having scored higher than anyone else in his grade, including Hiro, Nagi decides to finally confess to her.
Can we do our morning study sessions together...? (Episode 5) 7.3
Writer: Yasuhiro Nakanishi
Air date: 2022-05-22
Runtime: 23 min
Overview: Hiro and Nagi begin studying together in the mornings, but unexpected circumstances put a wrench in their relationship.
I thought you live by yourself. (Episode 6) 7.0
Writer: Yasuhiro Nakanishi
Air date: 2022-05-29
Runtime: 23 min
Overview: Erika joins Nagi’s and Hiro’s morning study sessions to wingman for Nagi, and Hiro wants to come hang out at her place.
Is my fate going to change? (Episode 7) 7.8
Writer: Yasuhiro Nakanishi
Air date: 2022-06-05
Runtime: 23 min
Overview: Nagi invites Hiro to join his group for a school field trip. The group is plunged into chaos with the addition of a couple more members.
Are you going to marry him? (Episode 8) 8.2
Writer: Yasuhiro Nakanishi
Air date: 2022-06-12
Runtime: 23 min
Overview: Sachi notices something going on between Erika and Nagi and decides to try to get to the bottom of it. Both she and Nagi are on the verge of a big decision.
The Kuroshio currents beckon to me. (Episode 9) 7.0
Writer: Yasuhiro Nakanishi
Air date: 2022-06-19
Runtime: 23 min
Overview: Hiro and Nagi go on date at the amusement park. Sachi is not amused.
Don't treat me like your kid sister. (Episode 10) 7.0
Writer: Yasuhiro Nakanishi
Air date: 2022-06-26
Runtime: 23 min
Overview: Sachi and Nagi go shopping together for a Mother’s Day gift, but they can’t think of anything their mother would appreciate
I can't forget that just happened. (Episode 11) 6.8
Writer: Yasuhiro Nakanishi
Air date: 2022-07-03
Runtime: 23 min
Overview: Erika and Nagi are stuck in a power outage. Nagi goes to the front door to find an emergency kit, when the unthinkable happens.
It's not that I like you, yet. (Episode 12) 7.3
Writer: Yasuhiro Nakanishi
Air date: 2022-07-10
Runtime: 23 min
Overview: Nagi tries to redeem himself after embarrassing himself in front of Hiro on their amusement park date.
Things aren't quite working out, are they? (Episode 13) 6.8
Writer: Yasuhiro Nakanishi
Air date: 2022-07-24
Runtime: 23 min
Overview: Nagi is beginning to question his own feelings, and he has trouble even focusing on midterms.
Walls exist to be overcome!! (Episode 14) 7.0
Writer: Yasuhiro Nakanishi
Air date: 2022-07-31
Runtime: 23 min
Overview: Erika’s parents want her to come home if she fails her make-up exams. She asks Nagi for help, but it may not be that easy.
We have to tell her... about our secret! (Episode 15) 7.0
Writer: Yasuhiro Nakanishi
Air date: 2022-08-07
Runtime: 23 min
Overview: Erika and Nagi walk around the festival together, and she shocks him with how out-of-touch she is.
I want to talk about now. (Episode 16) 6.8
Writer: Yasuhiro Nakanishi
Air date: 2022-08-14
Runtime: 23 min
Overview: Sachi is worried about Hiro, so she brings Erika along to follow her and learn about her.
Anything could happen right now! (Episode 17) 5.2
Writer: Yasuhiro Nakanishi
Air date: 2022-08-21
Runtime: 23 min
Overview: Erika, Hiro, Sachi and Nagi make plans to study at Erika’s vacation house, but there ends up being a slight change in the roster.
Who is that person? (Episode 18) 7.6
Writer: Yasuhiro Nakanishi
Air date: 2022-08-28
Runtime: 23 min
Overview: Nagi is hoping to do the test of courage with Hiro, but Erika takes him instead. Nagi can’t figure out what it is that’s bothering her.
You must have noticed by now. (Episode 19) 7.0
Writer: Yasuhiro Nakanishi
Air date: 2022-09-04
Runtime: 23 min
Overview: Erika reveals who it is that she’s been trying to reach through social media.
I want to grow up already! (Episode 20) 7.4
Writer: Yasuhiro Nakanishi
Air date: 2022-09-11
Runtime: 23 min
Overview: Nagi discusses with Erika what he learned – or tried to learn – from her father.
It's a secret between you and me. (Episode 21) 6.5
Writer: Yasuhiro Nakanishi
Air date: 2022-09-18
Runtime: 23 min
Overview: Having topped his grade in the term exams, Nagi confesses to Hiro once again.
I'll Be There With You (Episode 22) 7.0
Writer: Yasuhiro Nakanishi
Air date: 2022-09-25
Runtime: 23 min
Overview: Erika, Hiro, Sachi, and Nagi spend more time at the beach home retreat, and eventually, clues about Erika's missing older brother are found. This incites Nagi to search for him around the nearby town with Erika by his side.
What Should We Do Now? (Episode 23) 6.5
Writer: Yasuhiro Nakanishi
Air date: 2022-10-02
Runtime: 23 min
Overview: On the day Nagi, Erika, Sachi, and Hiro are to return home, Nagi and Hiro decide to stay behind to collect a shrine stamp from the local temple. However, become of this, their train ride home is canceled due to the stormy weather, thus forcing them to stay at a local inn where things get strangely intimate.
All That Matters Is That You Two Are Happy (Episode 24) 6.8
Writer: Yasuhiro Nakanishi
Air date: 2022-10-02
Runtime: 23 min
Overview: The household visits the diner to attend Yohei's birthday party and learn some family secrets surrounding them. The next day after a study session, Erika succumbs to a cold that she caught, and the household, including Hiro, scrambles to help her through it.
