When shy and seemingly inexperienced William is paired with bold and teasing Est for a new series, everyone assumes Est will always be the one in control. William's quiet nature and flustered reactions whenever Est flirts only strengthen that belief. But behind closed doors, William knows exactly how to unravel Est completely, memorizing every weakness, every sensitive touch, and every way to make him surrender. After a near-kiss incident during fan-meet sparks rumors and teasing from fans, Est scolds William for leaning in instead of backing away. Hurt by Est's reaction because he genuinely wanted the kiss, William decides to sulk until Est makes it up to him. But when Est finally does, he quickly discovers that beneath William's soft and shy exterior lies a possessive side determined to make Est pay for rejecting what he wanted most.