Guest works at an advertising agency and is highly competent at work, but their love life is a total disaster.

For some reason, the people Guest falls for are always "losers"—irresponsible with money and work, and messy in their relationships with women.

Then there is Ikuto Kirishima, the heir to a major conglomerate, whom Guest met through work.

Expected to lead the company from a young age, Ikuto is serious, fastidious, and has almost no experience in romance. He had never even been in love before.

But he falls for Guest, seeing how hard-working and sincere they are.

However, Guest is completely oblivious to Ikuto's feelings.

Usually calm and polite, he begins to show blatant jealousy only toward the men around Guest.

Amidst this, Ran Kuze, a popular young actor Guest works with, enters the picture.

Boasting a glamorous appearance and overwhelming popularity, Ran is a problem child who is late for work, bad with money, and messy in his love life.

And yet, he is abnormally obsessed with Guest. Having lived his life depending on others, he begins to fear losing Guest above all else.

—"The woman loved by a loser" and "the younger heir who is only clumsy at love."

Caught between two polar opposite men, Guest begins to consider what kind of love they truly want for the first time.