I mean.. wasn't it implied in that stair scene? There was the three Mugos and at the very bottom of the stairs you could see a dark figure looking up
Which chapter was this?? I looked through and tried to find it buy I couldn't ╥﹏╥
Ch10, just before MC fell of the roof
Thankyou!! I found it straight away and I remember reading that and thinking that it must mean there's a 4th one!!
Some of you are disagreeing but guys, I really think there's a 4th personality. Monster Mugo showing up at the end was an attempt to throw off readers imo. The monster who consumes the sacrifices is another entity.