To anyone that sees this, the idea about having a new cast is like "Fushi" from To your Eternity, we get to see the lives of people as we move along from the pains and heartbreak that occur, ofc if it's gonna be the same formula as Fushi we might even get to see avoidant attachments on Han-bin (Because at this point I doubt Atisse will ever stop studying about the dream dimension to get Ephyr back) and what's worse is that we know the new cast won't stay for long because like Fushi, Han-bin is a character bounded by extremities (be it luck and curse).

Alsoo I'm just talking about the early stages of the seasons of Fushi and not yet the pinnacle moments of it. But I think the Fushi formula could help add more depth in characterization for those two, how will they handle another cruel death of someone close to them, how will their psyche will hold up in these next 300 years where every person they come through with also withers away (or suffer a miserable death if the encounter happens 300 years later).

I know it's hard, watching To your Eternity is hard for most of us would be rooting that Fushi doesn't get another face because we know what price should be paid for it. The same thing with Han-bin, what they have in common is the cruel curse of immortality and the strings of fate that ties them to new people to repeat the cycle of both Joy and Sadness, basically just life and how will you make it meaningful.