
7.2
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!
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1Episode 1You're going to be my boyfriend.
23 min
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.
2Episode 2I'm not going to marry you.
23 min
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.
3Episode 3You aren't going to beat me!!!!
23 min
Living together with Erika gives Nagi an opportunity to focus on exam prep, except when they run into trouble.
4Episode 4Would you please go out with me...?
23 min
Having scored higher than anyone else in his grade, including Hiro, Nagi decides to finally confess to her.
5Episode 5Can we do our morning study sessions together...?
23 min
Hiro and Nagi begin studying together in the mornings, but unexpected circumstances put a wrench in their relationship.
6Episode 6I thought you live by yourself.
23 min
Erika joins Nagi’s and Hiro’s morning study sessions to wingman for Nagi, and Hiro wants to come hang out at her place.
7Episode 7Is my fate going to change?
23 min
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.
8Episode 8Are you going to marry him?
23 min
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.
9Episode 9The Kuroshio currents beckon to me.
23 min
Hiro and Nagi go on date at the amusement park. Sachi is not amused.
10Episode 10Don't treat me like your kid sister.
23 min
Sachi and Nagi go shopping together for a Mother’s Day gift, but they can’t think of anything their mother would appreciate
11Episode 11I can't forget that just happened.
23 min
Erika and Nagi are stuck in a power outage. Nagi goes to the front door to find an emergency kit, when the unthinkable happens.
12Episode 12It's not that I like you, yet.
23 min
Nagi tries to redeem himself after embarrassing himself in front of Hiro on their amusement park date.
13Episode 13Things aren't quite working out, are they?
23 min
Nagi is beginning to question his own feelings, and he has trouble even focusing on midterms.
14Episode 14Walls exist to be overcome!!
23 min
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.
15Episode 15We have to tell her... about our secret!
23 min
Erika and Nagi walk around the festival together, and she shocks him with how out-of-touch she is.
16Episode 16I want to talk about now.
23 min
Sachi is worried about Hiro, so she brings Erika along to follow her and learn about her.
17Episode 17Anything could happen right now!
23 min
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.
18Episode 18Who is that person?
23 min
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.
19Episode 19You must have noticed by now.
23 min
Erika reveals who it is that she’s been trying to reach through social media.
20Episode 20I want to grow up already!
23 min
Nagi discusses with Erika what he learned – or tried to learn – from her father.
21Episode 21It's a secret between you and me.
23 min
Having topped his grade in the term exams, Nagi confesses to Hiro once again.
22Episode 22I'll Be There With You
23 min
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.
23Episode 23What Should We Do Now?
23 min
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.
24Episode 24All That Matters Is That You Two Are Happy
23 min
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.

Kaito Ishikawa
Nagi Umino (voice)

Akari Kito
Erika Amano (voice)

Nao Toyama
Hiro Segawa (voice)

Konomi Kohara
Sachi Umino (voice)

Hina Youmiya
Ai Mochizuki (voice)

Ryohei Kimura
Youhei Umino (voice)

Yoko Hikasa
Namie Umino (voice)

Toshiyuki Morikawa
Souichirou Amano (voice)

Yukiko Aruga
Rituko Amano (voice)