I don't share Mettaton, Wally, Berdly, Agoti nor Kazuma
Their lore is constantly updating so I recommend reading it again from time to time :D
Mettaton (+ Papyrus) · Wally · Camilo · Berdly · Senpai · Agoti · Kuwabara Kazuma · P03 · Iida · Rui (+ Airi /p) · Kaeya /p