A honest young man is compelled to accept every girl who asks to be romantically involved with him.

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.—MAL Rewrite

After harboring an unrequited love for years, Naoya Mukai finally gets to date his childhood friend, Saki Saki. However, just as he tries to commit himself to this relationship, he receives an abrupt confession from Nagisa Minase. At first, Naoya tries to reject her but is soon overcome by feelings of not wanting to hurt Nagisa. Trying to avoid betraying his girlfriend's trust in him, Naoya thinks up a "solution" to make both girls happy: two-timing. Naturally, Saki rebuffs this idea, but through Naoya's and Nagisa's persistence, she reluctantly submits. With this, a three-way affair begins between Naoya, his girlfriend, and his "other" girlfriend, as they develop a relationship that deviates from the social norm.

The main character is Naoya, a first-year high school student. He has just confessed his feelings to Saki--the childhood friend he had been crushing on for a long time. Now that Saki is finally his girlfriend, Naoya is at the peak of his happiness. However, suddenly there's a girl named Nagisa who calls out to Naoya. She wants to be Naoya's girlfriend too. As Naoya's heart is being swayed by a good girl like Nagisa, he has to make a decision. This is a neo-standard romantic comedy that starts with a very unexpected choice.—Muse Asia