Ranker Who Lives Twice

I think somewhere in betwen chapter 190 to 200 his face got seen by edora on accident while nursing him, when our mc was unconches after the fight with Spoiler AlertAgares on the 23th floor. After awakening and putting back his mask on edora told him that he can tell her everything when he was ready to. Later somewhere in betwen chapter 300 and 400(dont remember which chapter) Spoiler Alertmc shows his face to phante and edora while asking them to be his wings or limbs(dont remember which).

1. I don't remember much now about the previous chapters but he took off his mask in the chapters named "Mask Off" and they thought he was Heaven wing (his brother) 2. Edora removed the mask that Yeon woo thought couldn't be removed without his permission and suspected that Henova did something. Spoiler Alert Edora kissed him after removing his mask and they spent the night together at ch 415

i think its 180

Spoiler AlertYes, he manages to rescue the soul of his brother who was in a state of "Hibernation". His brother got into that state because his mother's soul went to rescue him from the darkness where he was with the demonisms. By escaping with her mother with effort, she, as she was already delirious, runs the risk of disappearing forever. Fearing that his mother will disappear to rescue him, he copies his mother's power to enter a state of Hibernation waiting for his brother to rescue him and his mother. (In Hibernate state everything is in a paused state)

This is from what i have read. Spoiler Alerti think he does but dont know when. I have read to chapter 617. He managed to find a part of his brother's soul (which holds the memories)in the pocket watch and information from kalotus that the other part is somewhere in darkness. There was an explanation that the soul was made of two parts one was the spirit(dont know if the name is correct) that hold the memoris and indentity and the other which is the body of the soul (dont remember the name). His brother lives in the pocket watch because his soul is unstable with only one part and needs to be careful and rest or he will disappear. if he disappears then even if mc find the soul in the darkness it wont be his brother anymore. Because the soul will start to develope new memories and indentity ( like a new born). idk if it a good explenation, it is from what i remember. Mc found his brother in the pocket watch somewhere in betwen chapter 300 and 400. around the tartarus ark.

Spoiler Alertthe black was said to have existed before the universe was created. it was said that he was darkness, emptines and is contantly dreaming. It was said that if he awakens the universe will fade like a dream. The heavenly demon was the one who trapped the black king not Olympus. I think about Olympus trapping the black king was just speculations of our mc thinking the black king was kronos at that time(don't know about this one with Olympus it's from what i remember).

What chapter?

Read the very last chapter. The author says they're on the same universe

another dream of black king eh?

That's very possible.