Dude with a Rose as head.

I was searching for at least the last hour but couldn't find it ╥﹏╥

A few months ago I was reading this manga where two guys entered this house because of heavy rain and got divided there. The host of the house was a dude with a rose as his head.
One of the two intruders got split in multiple personalities with different colors and the other one has to find out who the real one was. When he claims one upon the personalitys as fake they get strangled by thorns and disappear into petals of the color they resembled.
I think it was more on the webtoon style definitely in color.

I would be so thankful if anyone could recall the name (⌒▽⌒)