Who Has Brightened Whose Years?

What I thought was a perfect start turned out to be the end of my first love in a bet. She originally thought that he was a passer-by in her life, but it turned out that there was an inseparable fate. I thought they were just rivals in love, but friendship grew spontaneously. I thought I could spend time with him, but God made another joke. I thought it would end like this, but it turned out to be just the beginning. . . . . . . See how an ordinary girl transforms. . . . . .