Moonlight overflows the vermilion palace walls, and also overflows the half wisp of obsession she hides in her sleeves. Through a sudden time travel, Su Wanyu mistakenly enters the maze of the emperor's love and hate. The thousands of favors within easy reach are things she never cares for, as she instead turns to fall into the grand preceptor's deep affection. Prosperity is like a dream, and deep love is like a calamity. In the end, can this bone-eroding fondness trade for an unfailing ending?