U Sung Eun&Jinyoung (B1A4) - I`m In Love [Perseverance. Goo Hae Ra - 칠전팔기 구해라 OST] - U Sung Eun&Jinyoung (B1A4) - I`m In Love [Perseverance. Goo Hae Ra - 칠전팔기 구해라 OST]