When Ritsuko woke up in the clouds after a long period of darkness, he was finally relieved. Because his beloved brother Ji Zi, his missed lover Yan Ran, his ashamed best friend Yong Zi, and his revered master were all smiling at him. When the seal was opened, he realized that human life is a majestic self-redemption, because life is God's punishment for fallen angels. Every angel who falls into the mortal world is burdened with a fault and spends a long life making amends for it. However, the sealed original memory makes him unaware of before life and after death, thinking that life is the starting point and death is the end. In fact, life is like a dark room. What is really important is to find the right way to escape, so as to return to angelic dignity.