Thirty-year-old Gang Nak-kyeong is a boiler repairman by day and a dog-loving shelter volunteer in his free time. He’s more than happy to enjoy his simple, ordinary life until twenty-four-year old Nam Jiha comes crashing into his life, calling him out for late night repairs and animal advice. Is Nak-kyeong ready to let another stray into his heart, or will Jiha have to keep searching for his forever home…?