A 14-year-old boy starts a project to make a family!

Joon-ho is part of a family made up of Sung-ho, Sung-ho's father Won-jae, and Won-jae's daughter Ji-young. They are so happy everyday thanks to Won-jae who thinks of Joon-ho like a son and his siblings who treat him like a real brother. Joon-ho says, "I want to be with you forever" and his siblings smile and say, "We are". Will Joon-ho get his wish of a new family?

在韓國釜山的小鎮上，男孩俊昊與母親、同母異父的弟弟成昊住在一起，母親工作忙碌，沒有太多時間陪伴他們。俊昊最愛帶著弟弟一起玩耍，兩人大口吃著辣炒年糕、去遠足、窩在家裡一起打電動……雖然家裡經濟狀況不富裕、生父又愛理不理，個性樂觀又喜歡照顧人的，俊昊童年照樣灑滿笑聲。

某日，俊昊接到母親車禍重傷的噩耗，兩位男孩必須離家、去投靠弟弟的生父。寄人籬下的日子裡，俊昊感受到差別待遇及隱隱然的不安—弟弟生父打算把俊昊送到育幼院……如果家人是永遠的靠山，俊昊與弟弟能否一直在一起？孩子們與生俱來開朗樂觀的力量，是否能帶領他們走向回家的路？

一部以孩子視角看待「愛」與「分享」的電影，深刻刻劃家庭議題，傳達《奇蹟》、《歡迎光臨奇幻城堡》的感動與力量！