Garam has a secret desire she can’t let anyone discover. She only ignites with pleasure when she’s pushed into submission. When Hasung, her brother’s friend, finds out, he makes a dangerous offer. “Want me to help? Then open your mouth.” From that moment, their secret affair begins. But soon, another younger man, Woojae, her friend’s brother, steps between them. Now trapped between two younger lovers, Garam can’t escape the forbidden triangle that has begun.

Since childhood, Yeonha has fervently pursued his dream woman, Soo-yi, undeterred by her repeated rejections due to their age difference. For Yeonha, Soo-yi has always been his one and only. However, a harsh reality check arrives when he learns of Soo-yi’s marriage while serving in the military. Years later, following Soo-yi’s divorce, Yeonha’s unwavering love for her remains unchanged and he sets out to make his beloved noona aware of how deep his feelings truly are. As time passes, Soo-yi finds herself slowly but surely consumed by the fiery passion of Yeonha’s love.