Rin has three months left to live, a quiet acceptance of the time she has remaining. She's always yearned for an end, her life spent under the shadow of a broken home and a terminal illness that has stolen her future. But when she meets Rei, a young man in the midst of his own battle for life, something shifts in her. Rei, recovering from an illness that has held him captive for years, is full of hope-hope that Rin has long abandoned. As their paths cross in a hospital waiting room, they find something in each other they never expected: a connection that bridges the space between life and death. But as their bond grows, so too does the fragile nature of their time together. With only three months to change everything, can love bloom in the midst of fleeting time? Or will it be lost, like the tide receding from the shore, before it can fully reach its destination?