Everyone has an unforgettable youth. Even if you’re the most common person ever, there will always be a good old time that’s unique to you. An ordinary high-school girl Zhen-xin, of all, fell for the most popular guy in school. A ruffian, Tai-yu, of all, went for the campus belle. These two losers formed a tack team to tear the golden couple apart and helped each other to get their loved ones. In the 90s when computer still took floppy disks, when the Internet was still dialed up, they met and they missed, they confessed their love and they bid goodbye. 18 years later, when all exciting things have become old memories, when she meets her ‘puppy love’ once again, will they be able to go back to the good old times?