Mamiya Natsume, a dedicated men’s beauty advisor, is paired with talented but cocky junior colleague Sahara Toma for sales. Although annoyed by Toma’s attitude, Natsume is blackmailed when Toma learns a secret. Natsume becomes the top pick for a high-profile holiday collection event, but rumors stir tension.

Toma's attitude changes after the event, and his sales skyrocket. He and Natsume gain media attention as a BA duo, but Natsume can’t stop thinking about "that night." Toma’s teasing fuels frustration—especially when a customer complaint specifically names Natsume.

Natsume is uncertain if he’s dating Toma. When he sees Toma chatting warmly with brand muse Lisa Yumihara, he feels uneasy. Toma is assigned as Lisa’s makeup artist for a national PR tour and will be gone for two months. A new artist, Nanjo, arrives—and seems to notice their relationship.

Toma is transferred to a new store, while Natsume is promoted to chief at their original location. Feeling anxious about being separated, Natsume receives Toma’s apartment key as reassurance. On his first day as chief, Natsume meets the nervous new recruit Harukawa, whose flustered behavior helps calm his own.

Toma has a painful past—betrayed by a senior male model, which ended his career. He came to respect and trust Natsume deeply, so when Natsume says something hurtful, it cuts deep. Unable to apologize before Toma leaves for Paris training, Natsume sends a message—but gets no response.

Natsume and Toma spend the night together for the first time, and Natsume starts calling him “Toma.” They begin living together. During a product PR event, Toma temporarily returns to Natsume’s store. Overhearing a conversation between Natsume and Harukawa, a jealous Toma warns, “He’s mine.”

Toma’s older brother, Tenshin, visits Natsume to reveal that their father wants to recruit Toma for his New York-based cosmetics brand. Surprised that Toma turned it down without telling him, Natsume is torn over how much to get involved. Hearing the full story from Tenshin, Natsume faces a choice.

Over six months into cohabitation, Natsume is thriving as a chief, and Toma has been promoted to makeup artist. Toma is assigned to a fashion show, but a twist of fate forces him to walk the runway himself. The moment becomes a test for their love and pride.