SU Ming-yi (played by CHENG Yu-xi) holds her first photography exhibition, reflecting on her youth and thinking of YAN Li-yao (played by SHIH Bo-yu). In high school, she was the class monitor, secretly admiring YAN Li-yao. Despite his frequent absences, they crossed paths often, with her feelings hidden. YAN Li-yao and CHENG Yan (played by LIN Zi-heng) were close but had contrasting personalities. After SU Ming-yi confessed, YAN Li-yao suggested a “trial” relationship. After graduation, they each buried their secrets. Years later, through an old roll of film and a photography exhibition, these long-hidden feelings are finally revealed, offering redemption for all involved.

Wei Qian has been the breadwinner of his family since he lost his parents at a young age. Besides providing for his biological little sister, Wei Li Li, he has also adopted Wei Zhi Yuan as his little brother. Wei Qian puts his life at risk and works illegally to support his siblings. Luckily, his childhood buddy, San Pang, gets him back on the right path. As life gradually falls into place, Xiao Yuan admits that he likes Wei Qian and forcibly kisses him. Overwhelmed with anger, Wei Qian sends Xiao Yuan abroad. Yet, Wei Qian feels as if something is missing. Both of them, who are not related by blood, are no more than brothers? Or will they cross that forbidden line and end up becoming lovers?