This is just a theory but—

My thoughts exactly.

omg that's... that might actually be true

It was Garon who kled MCs mother. He didn't know who she was at that time. At the end of the story, he was visiting her grave.

You’re coming in and ruining it. I don’t care if you read the novel or saw it on Reddit, but please don’t spoil it for us outright. Even if you know he did, you could have play along with the idea or tease us with hypotheticals hahahahah

This was spoiled many times in the comments before, well sorry if it was ruined for you