Wooyoung and Yeosang have been inseparable since childhood, their bond unshakable. Meanwhile, San and Seonghwa share a similar closeness, a friendship forged in trust and understanding. But when Wooyoung meets Yeosang's new boyfriend, San, his heart reacts in a way he can't explain. Confusion, longing, and unspoken emotions begin to tangle in Wooyoung's chest. As he grapples with these unfamiliar feelings, the lines between friendship and something more start to blur. In a world where bonds are tested, Wooyoung must navigate the delicate balance between loyalty and the unexpected pull of his heart. What will become of these intertwined relationships when secrets start to surface?