Talk:Additional Investigation/Rewards/@comment-114.125.15.211-20150621222550/@comment-24576157-20150621223129

The developers made it that way to the point to when you reach a certain level, you'd have access to all the items in your avatar shop. I can't remember which case in the Historical Center it is though. After that case, they give you a certain amount of coins instead of XP. Hope it helps!