12-Step Stairs! Part I

Gun had already dressed up in his student uniform. As he was about to step down the stairs, he suddenly heard the nurse’s voice speaking about her beliefs about the house stairs ringing in his ears again.

“What I’ll say from now is what I have learned. It is said that a house where many people fall down stairs is a house that cannot be lived in. There may be ghosts wandering around in the house, harming the residents. Especially for those born on Thursday, it is believed that they should not be near stairs at night. Otherwise, they might encounter the unseen. But that's an ancient belief. If you look at the principles of architecture, you can try to count the steps of the house. Most houses have odd-numbered stairs, but if it is even-numbered, accidents are prone to happen to people in the house. It is about how we, humans, step. I do not know this in detail. If it's the latter case... you might need to fix the stairs of the house."