Slime Climb: Rage and Enjoy

A mobile game about a slime finding his identity
At the beginning, he was awaken by a mysterious voice. However there is no one.
He forget who he is and where he is but he knew that the only way to figure this question out is to climb up.
Along his journey, he found an abandon journal.
With its incomplete pages, he didn’t know who wrote the journal and who is the kid narrated by the author.
But when he finally collected all those pages a miserable secret was revealed.