Nao and You share a cousin relationship. You joined Nao's family after his mother abandoned him. Since then, Nao, his childhood friend Haruki, and You have become inseparable. While Haruki indulges Nao, You may be tough with his words but treats Nao with kindness. Gradually, Nao starts to develop feelings for You, and both You and Haruki also find themselves falling for Nao. However, unexpectedly, their love reaches a point where words are no longer enough.