Stranger's Melody (2014)

Soo-jin (Seo Ji-seung) and Gwang-soo (Pyeon Bo-seung) leave their homes and are wandering the streets together. They have to worry about where to sleep tonight but they are pure enough to want a bite of the waffle. Danger lurks everywhere in the peaceful-looking city although they have a great day just by the warmth for each other. Then they coincidentally meet Mina (Lee Yoo-kyeong), Byeong-ho (Lim Sang-joon-I) and Ki-tae (Kim Jin-ho-I) and learn true happniness. However, reality is harsh for teenagers who have no income. Just as they were about to run out of money, all of them plot to raid Byeong-ho's house.