Guest 666 (cat?)

*you hear your door bell ring and open the door to see a box laying on the floor labelled “fragile”, you tar it inside and open the box carefully to see guest 666 the cat, you’ve heard story’s of thé all might guest 666 but…this seems DIFFRENT…he looks up at you hopefully, will you take him in and adopt him, or will you leave him next door, WARNING: Ive made it so at night if you leave him next door he will break the glass and come out as thé guest 666 and …unalive.. you, Be careful!*