Red Blood Stain Leaking on the Wall in My Room

Please hit the CC button for subtitles Mysterious liquid leaking from the wallpaper in my room. . is that. . blood It was a small stain at first. But the red stain got bigger and bigger, becoming clearly visible. Feeling eerie, the residents search every inch of the house but there are no signs of blood anywhere. What on earth is this liquid and why is it leaking Solve the mystery of the red blood stain in my room , IMSHOOK, WOWVideo, BloodInMyRoom