Against the Tide of Time: That Rainy Season

After waking up drunk one day, the male lead discovers that he has returned to the middle school where he first met the female lead. He is overwhelmed with excitement. That meeting was his lifelong regret, the memory he could never let go of, the pain in his heart... Since fate has given him another chance, he will spend his life making it up to and cherishing the girl who has haunted his dreams!