Yaoi - story that makes you fell hurt and crying

The person who always argues to leave is always the person who stoops and picks up the pieces of a broken bowl. But when he made up his mind to leave, he just put on his most commonly worn coat, left home in a breeze, sunny afternoon, and never came back. He Zhishu is like the air and the water to Jiang Wenxu. But Jiang didn’t realize that until one day He Zhishu suddenly left. Jiang regretted, but it’s too late. “Wherever you go, my missing could reach you even at the end of the earth.”

Halloween. It might be a special day for some, but at the same time, it might be a meaningless day for others. Jinyoung, who lost his boyfriend, Eunchan, 3 years ago, spends his Halloween in the least special way possible. No wait, he was trying to spend it that way.
So why did the dead Eunchan suddenly appear next to him after all this time?