Mari, a high school student who lives in a town where beasts and humans coexist. In front of the main gate, she is late and meets a beastman, Tsuna, who came as a "special student" in the beastman education program. Although he is confused by the existence of a "beast man" who comes into contact with him for the first time, he is attracted to the gentle and pure side as he interacts with the connection. But it seems that some classmates don't like the beastmen-they are suddenly trapped in a warehouse. What's more, suddenly I was hugged by the connection !? "I smell sweet" ... A breathing that gets rough. If you stare at me with such eyes, you can't suppress the beating heartbeat! Humans and therians. Whereabouts of love between two people across races ...? Pure and exciting heterogeneous youth love.