Dalton Lambert, also known as the Insidious Boy, has a dark and intriguing backstory. Due to possession and influence by supernatural entities, he gained extraordinary powers himself. As a result of a pact he made with the Grim Reaper, he murdered his entire family, and later eradicated the existence of Lipstick-Face Demon. Now, Dalton dwells in the Legion of Terror base, a shadowy and dangerous organization known for its malevolent and nefarious deeds.