Season 1
Girlfriend, Girlfriend
Naoya Mukai is having the time of his life after his childhood friend Saki Saki finally accepts one of his countless confessions. Ensuring that their relationship will stay strong, he spares no effort in showering affection to his now beloved girlfriend. However, one afternoon, another girl named Nagisa Minase suddenly confesses to Naoya following months of preparation. Even though he politely rejects her, Nagisa's irresistible charm and determination continue to attract Naoya. Wanting to fulfill both Saki and Nagisa's desires, Naoya ends up proposing a crazy idea—to date the two of them simultaneously, with both girls fully aware. This unprecedented state of affairs ultimately causes wacky and hilarious situations in whatever they do to keep their unusual relationship going.
Episodes
Even If That Isn't the Right Way
Naoya Mukai is in a relationship with Saki Saki, but another girl, Nagisa Mizuse, asks him out. He makes the unthinkable decision of asking them if they would be up for both dating him at the same time.
How Nagisa Feels
Naoya, Saki and Nagisa are now living together. Keen to learn more about Saki and Naoya, Nagisa gets into her phone and looks through her browser history.
A Place for Three
Naoya, Saki and Nagisa search all around school for a place where they can eat lunch in peace, without anyone finding out that they are in a relationship.
Girlfriend and Girlfriend
Saki returns to Naoya’s place and plays some games with Nagisa, who is utterly horrible at it. They notice that a gaming MeTuber seems to have the same uniform that they do.
A Third One!?
Rika, who’s outed as a popular MeTuber, insists on dating Naoya. When he rejects her, she decides to try to live at his home along with the other two.
Tsun Is Dere
Rika starts her not-so-laid-back solo camping life in Naoya’s yard. Naoya and his girlfriends decide that enough is enough, and try to have her camping gear taken away.
The Girlfriends' Challenge
Saki realizes Rika is serious about Naoya, and begins frantically looking for ways to keep her from joining their relationship.
Obviously in Love
Rika comes to hang out in Naoya and Saki’s classroom, causing sparks to fly between her and Saki.
The Tsun's Dere Gets Outed
Saki tells Naoya that Rika’s apparent crush on him is only the result of her being in heat. She insists that this is a real thing, and Naoya buys it.
Can't Wait for the Hot Springs
As a way to clear the air after Rika kisses Naoya, he, Saki and Nagisa decide to go on vacation at a hot spring.
Hot Spring Tropes
Nagisa spends her time on vacation with Rika to try to keep Shino from finding out that dating both her and Saki.
Girlfriend, Girlfriend
Nagisa had insisted on supporting Saki on the hot spring vacation, but when Saki confronts her about it, she begins to speak her mind.