You are an outcast robot.
After sending away a round-faced girl who escaped from marriage, a group of illegal middle-aged men, and a deceased old man, you finally welcome your fourth neighbor.
The fourth neighbor is a depressed young man with good looks, but he is bored at home all day long and doesn't know what he is doing.
You and him were on good terms until he picked up the necklace you left and knocked on your door.
Concept: Survival and Death