本片是一部韩国Comedy片，上映于2018-01-08，由闵渊弘导演，由李正信/李烈音/徐智勋主演。
剧情简介：Kang Shin-Woo is a math teacher with a good looking appearance. He has not forgotten his first love Han Ji-Soo for the past 10 years. By an accident, he travels to the past when he was a high school student. There, he meets his younger self. Kang Shin-Woo struggles to make the younger Kang Shin-Woo's love come true.
外文名：애간장
别名：初恋大作战(港) / My First Love / Longing Heart
类型：Comedy / Mystery / Sci-Fi & Fantasy
地区：韩国
导演：闵渊弘
编剧：朴佳妍 / 金熙蘭(原作) / 金炳寬(原作)
演员：李正信 / 李烈音 / 徐智勋 / 李柱亨 / 金旻錫 / 敏度希 / 曹承希 / 高圭弼 / 李太善 / 朴俊成 / 李想 / 金善映 / 宋智贤 / 金荷琳 / 인수연 / 韩大光
