Monotone (слэш)

Wei Wuxian died. Wei Wuxian died and he never came back, not after thirteen years, or a hundred, or a thousand. The year is 2019 and Lan Wangji is still here, having reached the highest point of cultivation that has gifted him with immortality. It's supposed to be a gift, an honour, yet to him it's nothing but a curse.
Wei Wuxian is dead, and life is colourless. Lan Wangji ghosts through time, simply living each day in monotone.
That is, until he meets a man who has the same face, same name, same smile as Wei Wuxian. Suddenly, there's colour and hope back in his life—but it's not long until he realises Wei Wuxian in this timeline has not escaped the sorrow that plagued his past self.
Maybe history really does repeat itself after all.