Lewis Pepper - Takes Arthur Kingsmen's role
Arthur Kingsmen - Takes Lewis Pepper's role
Vivi Yukino - Takes Mystery's role
Mystery - Takes Vivi Yukino's role (New Name: Benjamin Mystery)
Shiromori - Takes Mushi's role (Indicating as Ben's ancestor now)
Mushi - Takes Shirmori's role (Same abilities as Shiromori ofc)
Lance - at the very moment i am unsure who he swaps with,he'll be just a friend to Lewis and the gang also sticking as Arthur's uncle.
Arthur and Ben weren't exactly dating,they just seemed close. Lewis pratically felt left out by it