A girl with telekinetic powers that work by staring uses them on everyone around her like a casual weapon, and nobody in her orbit has learned to see it coming. Her family is already dysfunctional before she weaponizes her gaze; the chaos is just the natural extension of people who have no boundaries getting the supernatural ability to enforce none. The show treats her power as a punchline, not a tragedy, and that's the entire joke.
An elementary school girl with telekinetic powers runs roughshod over everyone in her orbit. Hennako only has to stare at people, animals, plants or objects to bend them to her will, and she pulls the strings on her family and the world around her with nothing but her eyes. Her parents are thoroughly ordinary, her older sister is risque, and the family dog is a former stray. None of them stand a chance against her abilities. The comedy comes from watching Hennako turn her powers on the people closest to her, dragging out their secrets and throwing their daily lives into chaos. Her supernatural gift doesn't make her a hero or a villain. It just makes her a catalyst for chaos in the lives of everyone who shares a roof with her. This is dark humor aimed at adults who appreciate the absurdity of a child casually exposing her family, spread over six episodes where nobody's secrets are safe.