Seiyou Kottou Yougashiten: Antique follows Ono, a world‑class pastry chef and charismatic gay playboy. 14 years after confessing his love to the handsome Tachibana in high school, Ono has become a celebrated chef whose charms and culinary talents attract everyone around him. Now, he has taken a new position under a man named Tachibana, the same person who once snubbed his affection. The story explores whether the man who resisted Ono’s charms can finally hold him in check, and how a former middle‑weight boxing champion ends up as Ono’s cake boy. The narrative weaves Ono’s rise to fame, his relationships, and the delicious world of pastry he creates.