Boku no Hero alternative start

One night, Endeavor's hero agency was called, the occurrence was in an old abandoned building, there were suspicions that a villain was attacking the place and **** civilians, Endeavor sent a team composed of 2 men and 2 women to investigate, when they arrived at the old building they started to investigate but without much success in the first few minutes, all they could see suspiciously was a strange black liquid that dripped from some walls but they thought it was just dirty water from the debris of the building, until a one of the women on the team was pulled into the darkness by several black tentacles made of the same liquid they had seen before, the team was shocked for a while but quickly they went to help their companion, upon arriving in the room where she was pulled they found a large man covered in black liquid **** their mate, the team quickly started to attack but the man defended himself using his company's quirk was being ****, the team was confused and scared but they didn't stop the attack, the other woman in the group launched a blast of fire that covered the man in flames, he screamed in pain and was struggling for a while until the flames dissipated, when the flames dissipated, the naked body of an **** man was revealed but without signs of the black liquid, they rescued his companion and took the man into custody to interrogate him but when interrogated the man did not remember anything at all but he and the woman who was **** were quirkless now.

TRIVIA: on this universe the symbiote can steal the hosts quirks **** them, the symbiote can use the quirks even without a host but it needs a host to steal.