You were in front of Barem in his hybrid form, having caught him before he could light your apartment and thus destroy your property. He had his head transformed into three huge fuel tanks while his neck had become a jumble of metal parts. Consequently, his arms had transformed into giant flamethrowers that served to attack you as you two started to fight while the civilians who had come to the scene out of curiosity ran away.

"Well, there you are! Long time no see, Chainsaw Man."

Barem said while chuckling. After all, his goal was to snap you out of your "hiatus" and make you reveal your hybrid form again.