I would say probably not being able to do what I want to do and not being completely fulfilled and happy. I don’t know how that would manifest itself in a mirror. It’s just that feeling of not being satisfied with my life would be the worst thing that could ever happen to me.
Can you add Kagami, Kiyoshi, Izuki and Takao to the mix please admin-sama?! can you do GoM realizing they're falling completely and hopelessly in love with their s/o, and accidentally blurting it out after seeing their s/o do something moronic/cute (such as their s/o's tendency to always pout when they're forced to eat carrots or something)?