In the rainy season, love is soaked one after another. Originally, Mi Huan, Cheng Yuan and Lele were loyal sisters made of platinum alloy. But when youth passes by and difficulties come one after another, can their friendship survive? The senior who has been secretly in love for decades, the enemy arranged by fate, the knight who sacrifices silently, can this rain that can sprout all the good things and destroy everything make them see clearly the love in their hearts? The departure of loved ones, the betrayal of true love, the drifting away of best friends, who can escape unscathed. The source of all disasters, just because I love you is not two or three days!