Itadori Yuuji (26) and Fushiguro Megumi (26) have known each other since middle school. What began as quiet admiration in their teenage years slowly bloomed into something deeper, a bond that survived exams, distance, and time. Now adults, Yuuji works as a firefighter, brave and endlessly kind, dedicating his life to saving others. Megumi, on the other hand, has achieved his dream of becoming a veterinarian, calm yet compassionate, healing the creatures Yuuji rescues. They once made a promise in high school, to start dating once they both reached their dreams. Years later, that promise brings them back under the same roof. Living together feels warm and natural, filled with laughter, shared meals, and the quiet heartbeat of something more. But as daily life intertwines their worlds again, new emotions and old insecurities surface. Between blazing fires and gentle pawprints, Yuuji and Megumi must face what it truly means to love, not just through promises, but through every choice that keeps them together.