In the Taishou era, Kazunari Kyougoku heads a promising trading company, his peerless negotiation skills making him a formidable competitor. However, his triumphs are not solely due to his bargaining expertise, as Kazunari possesses the gift of telepathy, which enables him to decipher the true intentions of those around him. This ability has caused him to distrust many people. To boost his business's prosperity, Kazunari plans to marry Nana Suwabe, the daughter of a prominent family. Though her response is affirmative, he soon learns of her inability to speak. Intrigued by the prospect of hearing her innermost thoughts instead, Kazunari looks forward to their union. But upon meeting Nana, he is mystified: he cannot hear her thoughts. With his entire life spent tuning in to the desires of others, Kazunari endeavours to unravel Nana's deeper emotions and construct a positive future together.