Terug's face after returning was strange, but Yale attributed it to their previous conversation, so he didn't think too much about it.
Not even Yale was allowed to know the contents of the conversation with Alter Yale, so Terug remained in silence.
"Well, with this settled let's go to a room and start your Life and Death Trials. I will leave an incarnation to control you after that, so don't worry."
Although the Life and Death Trials happened at a different time flow than in the real world, as long as someone didn't fail and was somewhat successful in those lives, it could still take several hundred years in the real world.
Although it was impossible to reach immortality, there were lives when training was possible with limitations, so if one didn't die early, it was possible for those lives to be quite long.
Of course, it was also possible to die early in all the lives, and the Life and Death Trials would finish soon, but that wasn't the best result.