Well, the background was meant to be a big backstory shocker by the end, but a member of team shadow is Jake's dad, who killed his mother on this "business trip", leaving Jake to tend to the house alone.
Mark is Jake's mentor from team shadow who taught him every single thing he knows about fighting and such, but despite being so calm, has an extremely dark tendency to murder the innocent. Whenever Jake hit his head on the tree and was knocked out, he got amnesia, which made him forget his purpose of why he went to the academy, which was to kill Emerald. Explaining the fuzzy flashbacks and t