Ch. 52 (Main Story Ended)
Ch. 53 - 57 (Side Story)
It's more on Shounen Ai side than Yaoi
Uke reincarnate after 100 years with his same features and all the events in his life (past life) also the same in this current life. At first Uke doesn't have the memory about his past life but the time when he first meet Seme (also like at their past life) that's when Uke's memories came into him (Same goes to Seme, but his was a little late) When Seme remember about their past life, he knows that he need to change for Uke and for their sake. Little by little their relationship has been having a good change
Palace of Bardo