Bahasa Indonesia - Min-Soo adalah seorang pemuda yang tengah menjalin hubungan dengan seorang wanita. Min-Soo sendiri tinggal bersama anjingnya, Runni. Anjingnya itu bagaikan adik baginya. Tak lama lagi Min-Soo hendak menikahi kekasihnya, namun timbul krisis yang membuatnya tak bisa lagi hidup bersama Runni. Min-Soo lalu menghubungi kakak sepupunya, Jin-Kook. Di sisi lain, Jin-Kook membuka sebuah usaha kafe yang kemudian bangkrut. Di tengah situasi inilah ia mendapat telepon dari Min-Soo. Berdua mereka memulai petualangan untuk menemukan orang yang tepat untuk merawat Runni.
English - Min-Soo is a young man in a relationship with a woman. He lives with his puppy Runni. His puppy is like a younger brother to him. Min-Soo is going to marry his girlfriend soon, but he faces a crisis that will make him unable to live with his puppy Runni. Min-Soo contacts his older cousin Jin-Kook. Meanwhile Jin-Kook ran his own cafe, but his cafe went bankrupt. He receives a phone call from Min-Soo at this time. They begin a journey to find a perfect guardian for Runni.
(In Korean with Indonesian/English subtitles)