What we can learn from this manga is to always listen to what others want to say, at least once, even if you don't want to, don't be delusional like that thing and Ariarose siblings. You can't just carelessly make assumptions cuz it's too late, if you already fucked up.
Sigh...😦That's why you should listen and don't assume something so quickly. And don't be delusional... Now you know you wrong, and get what you deserve sigh😩😧