I think he despises the fact that people change a lot because of money, and that maybe someone on his family has dementia or a lover or someone had. I love this manhwa it makes you believe that there is so much more in life.
Actually after reading this, it saved me because I have so many regrets after my grandma died it killed me from the inside and I felt guilty not apologizing to her for my mistakes. I relate to the parent's of those students who got into an accident because even though I can't see her I know she's there, even though she doesn't answer I know that she hears me. This manhwa makes me emotional I love it I love the author