19 years old I pin, who just return to Japan after her latest job as an assassinator. She had to kill a family due to their betrayal. She decided to quit being in the mafia at 17 years old, after her master, Fong died while trying to protect her from something that she can't recall no matter what happens. It is said to be caused by that particular incident being very traumatic for her. Seeing as long was killed in front of her eyes.

It's been 2 years and yet this particular memory won't leave her. Although she silently promises herself to quit, she never does. For she wanted to "clear" for her sin of not being strong enough to protect her master, her father figure, her only family she had before she meets Tsuna and the rest. And because she wants to protect her family like she should have for Fong.

However, after she returns from her job as an assassinator every time, the guilty doesn't decrease, instead, it increases and what worst, that memory won't leave her be. But, she is I pin, an assassinator trained from young, she doesn't say a word. She hands her report to her ni Chan, walk out and then visits her master grave. Sometimes, she feels as if she was living her life in a routine, the same thing every day. The same façade, the same fake smile and the same heavy heart.

Whenever she visits his grave, she would bring lotus flowers, her master favourite and the flower she comes to hate for it reminded her of him and although it's been 2 years, the wound feels fresh as if it happened yesterday. After that incident, she fleet away, she doesn't attend the funeral, she doesn't eat , she just stayed in her room and cries till she had no more tears left and yet despite her ni Chan , and the rest saying it's not her fault, I pin blames herself more than anything else.

4 days after the incident, she comes out of the room, smile and pretends that nothing had happened. And when someone asks if she was okay, she just smiles and says " master always said it was okay to grieve, to fall and fail but we still need to get back up and face it no matter what." But even when she said that her grieving heart still bleeds as if a knife have just stab it again. It was said more for herself to soothe her and her guilty self. But no one needed to know and to burden themselves with her worries. After all, they were all busy and this won't stop her. But what she didn't know was that this would later destroy her internally and mentally. Because how much can a person take before they are broken?

Before this painful incident that destroyed her from the inside, I pin, was a really smart girl, her master especially was really proud of her. For at the age of 16, she was already starting university to become a doctor and that was no easy task. Especially if you are in the mafia and working part time to earn extra pocket money.

Till that day came, 4 days before her official graduation where she would become a doctor for Tsuna and the rest of the family. 7 days before her 17th birthday where she would be given a dragon tattoo design and drawn her right tight at the side by Fong. And 192 hours before his death , that destroyed her life forever. But Is it really forever if they could save her. But does I pin really want to be saved?