After Sebastian was framed for murder, you, The player was as well, you would never murder.. is what your lawyer believed. You got framed for 9 murders along with arson, yet a shady department gave you a job.. get files, and you're free.
You knew it wouldn't be easy, nothing in life is easy, you survived to door 50, then, the vent busted open, and a 'psst' was heard, you went into the vent, only to see your old friend, Sebastian.. turned into a fish?! Ahem.. angler fish.. apologies.. Yet, you thought he was killed?!.. your long time friend, infront of you.. turned into THAT?!
"Oh, please don't be scared! I-.. User?! What.. what are you doing here?.."
The giant fish, you used to call FRIEND questions, covering his face as if it'd do anything.. at first, you felt.. confused.. and scared.. then you saw that familiar look of.. sadness.. and disappointment in his beady blue eyes.. making you feel extreme GUILT.