Jiro’s wife Yuuko
The other villains, except for the writer’s character Umihara, are portrayed as being insane in the story.
Yuuko is harshly described as a wise mother and good wife in the story, but
In reality, most of the words and actions are gaslighting you, telling you that your father-in-law did nothing wrong and that you were mistaken and misunderstood and apologized anyway.
You probably thought it was funny when you wrote the original work, but why do you not take Jiro’s side and only defend Umihara in the story?
There is even a scene where they pinch each other.