I loved it. But can anyone explain how the 100 years past?? One moment tarou was in wolf's...

So it’s been 100+ year because when the merchant’s grandpa had come into the woods and seen the wolf and the boy he had recalled a folkstale. Meaning that there was about a few years maybe hundreds since the day they sacrificed the boy and ever since that day it had ‘become peaceful’ or whatever. So it was probably written as a historic moment in their village with date and all. The grandpa of the blind man was the one who had come looking for the unicorn horn so that means there’s been a few generations that had passed as well. Probably the 100 years were since the day he had been sacrificed to the date the blind man saw him again. Chances are that he aged faster outside the forest than inside because he was under the wolf’s divine power or something like that. He probably lost conscious when the wolf ran to him or it could have been another avalanche, or maybe we’re missing a chapter? I’m unsure. But seeing as no one in the human world wondered why he wasn’t aging , it probably means that he started to age like a normal person throughout those years outside of the forest and he quickly went back to Uru/Ul. Maybe Uru/Ul just wanted to say goodbye one last time and that’s why the boy woke up somewhere else, his last try at sending him to where his species belongs rather than have him stuck with him for the rest of his life.

Thanks for explaining (●'◡'●)ﾉ