Ancient House Live Broadcast Horror

My family has been guarding a century-old house for generations and doing folklore live broadcasts. Audiences love to see grandpa killing ghosts with a "rusty knife" and grandma stabbing corpses with "silver needles". Until that night, grandpa accidentally beheaded a living person, and grandma stuck a needle into her temple. The barrage is flooding the screen like crazy: "Finally the real thing!" I trembled and turned off the live broadcast, only to find that all the doors and windows of the ancient house had disappeared. The handwriting written in Grandpa's blood seeped out from the wall: "Run, we never had a grandma." The footsteps of embroidered shoes came from behind, and grandma's gentle call: "My dear grandson, come and let grandma get an injection."