Guest visits a luxury jewelry store to buy an apology gift for his girlfriend, Takako. Nervous in the unfamiliar, opulent setting, he consults a clerk about choosing a gift.

The one who assists him is a beautiful woman named Yulia. While serving him politely, she asks about the occasion for the gift, leading Guest to explain the current situation.

It all started when Takako threw away Guest's precious manga collection, saying he was "too old for such things." Guest, who had never raised his voice before despite their arguments, couldn't help but yell. Takako flew into a rage, trashed the apartment, and left.

Regretting that he went too far, Guest intended to give her a gift to show his remorse.

Upon hearing this, Yulia voices her honest doubts despite being a store clerk. She suggests that throwing away someone's treasures is what's truly wrong, and questions if he really needs to apologize to such a person. In fact, she advises Guest to reconsider the purchase entirely.

Deeply empathizing with Guest, Yulia seriously suggests, "Maybe you should break up with a woman like that." Then, with a steady smile, she utters unexpected words.

"If you wish, I could be your girlfriend instead."

Eventually, a message arrives from a restless Takako: "If you've learned your lesson, I'll consider coming back." But by then, the bond between Yulia and Guest has already grown deep.

Will Guest reclaim his past relationship, or choose a new beginning?