Rimuru Transport To Most Ancient Past Of Earth?

The earth rimuru currently in

Its been eons passed after world regenerated.

By now what rimuru doing ? Is he tired of living for countless years in this world no one is there for him to care no one exist to cares of him isnt loneliness is the most annoying , saddest thing in this world with constant memory of their loved one's? Is it bad or good no one can tell isn't ..then what are you gonna commit suicide just cause your lonely ? What if the world didn't allow you to die? What if the world didn't allow you to wipe your memory? All because his constant eternal immortality noway to nothing can harm him even the all of existence and non existent wipe out he will live constant immutable soul and consciousness which can't be removed , ended a nothing can wipe him nothing can kill him a being cursed with immortality.. all to remember his companions daily daily every inch time March not even the cycle of time can make its make him forgot the memory it's etched in his deeper of his soul in the most important part of soul most deeply in the mind soul , astral body , mental body , astral body at the nucleus level
there he met a bald guy named Saitama saitama died just from single snap of Rimuru finger accidently purely accident Rimuru become so sad a overrated hero died so horribly by just accidently snap of finger all because of the pressure , density of Rimuru is Infinity in finite form so Saitama saddly died after it Rimuru

While he travel between universes daily to make him forgot every thing every day every time he trying his best to forget his companion but how much he tried it's can't be undo the memory regardless of anyone tried he

As in his travel he finnally met her ? Who is her ? Is she somuch important to him in past ? So important he will give his life for her to see her again ? Who is her is the test of destiny already over for him..

(My own )