"The first time I meet Nosaru, she was 19 years old." Nero says. "Her life changed after she became an enemy for us."
"What happened exactly?" Nagi asks.
"My family burned her house and killed her parents. Then, Speed my brother killed her younger brother, who is Xeln. After Mukuro was born, they killed his father, but I didn't kill."
"And you are trying to show us that you are an innocent person." Mukuro looks at him. "What is your true goal? You didn't come here to fight my mother, am I right?"
"You are a smart guy, just like your mother."
"Would you stop and tell us the truth?" Mukuro says.
"It is about the Vongola family." Nero answers.
"Our family…?" Nagi asks in shock.
"They are three strongest mafia families in the world." Nero says "One of them is mine, and the other is named BiancoFiore, they are planning to destroy your family."
"They are going to fight us in a war?" Mukuro smirked. "Ku fu fu, so rediculous."
"If I was you, I wouldn't say that."
"Eh?" Nagi is confused. "What do you mean?"
"They have a time machine, like this, they are going back more than 400 year in the past to destroy Primo and his guardians in their childhood."
"No way!"
"Is this even possible?" Mukuro asks. "I thought there was only a time machine who allows us to comeback only 10 years in the past."
"That's true." He answers. "But, this family used the technology of ten years in the future, and makes the most powerful time machine by using their flame. The most powerful flames, flames of darkness."
"Darkness?" Mukuro asks. "I've heard about it, when you fight with Nagi, you used the powers of darkness."
"Yeah, I come with my friends to help you, so we can later take care of you by our self."
"Ku fu fu, sounds like the same thing. How do you think we will stop them?"
"Too easy." Fire and Lent come. "We stole one of their machines."
"Well, nice to meet you guys, I am going."
"Wait a second." Mukuro stops him. "You said you knew my mother when she was 19 years old, right? But you seem younger, you seem at the age of Nagi."
"I am 23 years old." He smirked. "As I said, the darkness is so powerful." He goes away.
"I don't really trust him, but we have no choice, Nagi." Mukuro says. "We need to tell the others about this."
"But, Mukuro-sama, I thought you hated mafia."
"That's true, but, if they destroy it 400 year ago, I would never meet you, and…"
"You are planning on doing something?"
"Ku fu fu fu, I would like to meet the greatest illusionist in the history, Daemon Spade, the real one."
"Master! Sister!" Fran runs towards them.
"Fran?" Nagi looks at her brother. "What happened?"
"Nosaru-san…" He says.
"What happened to my mother?"
"She… she is not here! She is gone!"
"What?"
Nosaru walks in the forest. "This… this is it! I will find Speed! Before he does something else!"