A girl with a creepy smile in manga often creates a sense of tension or surprise. It might be used to make the reader question her motives or intentions. Sometimes, it's just for shock value to draw attention.
This novel was called "Blade Breaks the Demonic Sky". The main character said,"If I break the Demonic Sky to prove my true self, I will smile at the sky with my blade, and slaughter all the pigs and dogs in the world to lower my head." I recommend this fantasy novel to you. The story is fascinating and the details are well handled. I believe you will like it. I hope you like this fairy's recommendation. Muah ~😗
One possible fanfiction could be about Naruto using his creepy smile as a tactic during a battle. Maybe he uses it to unnerve his opponents and gain an upper hand. For example, in a fight against a powerful villain, his creepy smile makes the villain second - guess Naruto's next move, thinking he has some devious plan up his sleeve.
The creepy smile can add an element of mystery. In fanfiction, it could be used to draw readers in as they try to figure out why Naruto has such a smile. Is it related to a new power he has acquired? Or is it something more sinister?
Guts is purely fictional. It's a concept or character that exists within the realm of imagination and creative storytelling rather than being based on reality.