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.
蘇明儀舉辦攝影首展回顧青春時光,思緒卻無法不牽掛顏立堯。高中時,她暗戀顏立堯卻從未表露。顏立堯對蘇明儀有矛盾心情,顏立堯的好友程硯則默默關心她。當蘇明儀主動告白,卻被顏立堯以「有期限」的試探回應。畢業後,三人各自將心中的秘密埋藏。多年後,透過攝影展和一卷舊底片,曾經的秘密終於揭開,讓他們找到了心靈的救贖。