When a burst water pipe unexpectedly brings the ceiling of her apartment crashing down, "Luksorn" has no choice but to pack her bags and seek temporary shelter under the roof of "Marisa"—a stern, meticulous female architect who happens to be a close friend of her own older sister.
Everything should have been nothing more than a quiet, well-behaved temporary stay...
Until late one night, when an unlocked frosted-glass bathroom door reveals a deeply guarded anatomical secret hidden beneath the older woman's prim, tailored clothes.
The striking, unconventional beauty of that image burns itself into Luksorn's mind, igniting a profound attraction she has secretly harbored for years until it erupts beyond her ability to control. Determined, the younger woman decides to cross the threshold into the master bedroom under the cover of darkness, climbing onto the bed to challenge the heart of the woman who keeps trying to push her away.
Yet... the searing passion they thought was merely a fleeting accident spirals into a clandestine bond neither can break free from.
The closer their bodies press together, the clearer Marisa's past scars become—all while a ten-year friendship with Luksorn's sister hangs by a thread.
Caught between doing what is right by stepping back into the role of a mere younger sister, and risking everything for love to hold on to this stubborn woman... will she agree to stop, or will she insist on crossing the line all the way to the very end!