WHAT IF XQS is LCZ too but later in a change of character ???. like the system lets him change characters later…
I was thinking the same before maybe they are same person like what if XQS has the ability to time travel or something and at one point for some reason did travel to past and assumed the identify of LCZ to complete a mission or something
My guess - The client that engaged Valkyrie's service to be bodyguard for MunJu is actually not for good intention…
I am wondering whether the dead husband is the client or someone he hired, maybe he knew he will die and wife will be in danger too so wanted to protect her.