Tsuna and Reborn are walking around the town but a woman approaches him. "E-Excuse me Umm are you the Vongola Decide?" The woman asks him.
Tsuna looks at her and nodded. "Yes.. I am. Is there something you need miss?" he answers kindly.
The woman is about to cry. "Please kill me!" she shouted.
Tsuna looked shocked at the woman's words. "B-but why? I-I can't kill a woman like you.." he stutters.
The woman still pleaded to him. "Please! Before Tomoe finds me and you have to keep my daughter safe!" she said.
"From what?" he asks, he was getting worried for her.
"He is experimenting on my little Kazuko..." she answers, tears falling.
Tsuna is shocked by the woman her own daughter is being experimented on? He knew Tomoe since he is from the Phantasma Famiglia. "Then you must be.. Minako-san?" he asks still shocked.
Minako nodded. "So please kill me and protect my daughter from him..! I beg of you!" she said, tears falling.
"B-but I can't kill you! I'm sorry but we will save your daughter..." Tsuna said and starts to move away but before he could, Minako grabbed his gun from his pocket and shot herself through the head.
Tsuna has his eyes wide on what had happened. "W-What should I do?! R-Reborn!" he panics.
Reborn looks at him sadly. "First we bury her body then we find Kazuko." he said.
Tsuna nodded and both him and Reborn buries her body.
Meanwhile at a mansion where Tomoe and his family lives. Kazuko and her older brother Kazuto are playing together.
"Onii-sama! Let's go find Mama!" Kazuko said.
Kazuto smiles and patted her head. "Sorry Kazuko-chan we have to wait for Okaa-sama to come home." He said.
Tomoe then smiles and goes to his children. "Kazuto.. Kazuko.. Papa has to go somewhere.. Stay here and be safe.." he said.
"We will papa/Otou-sama." Kazuto and Kazuko said.
Tomoe smiles and patted their heads as he returns to his lab. Then he returns again with a syringe in his hand. "Come here Kazuko~ Time for your daily nap~" he smirks.
Kazuko tilted her head, as the three heard a knock but is eventually destroyed by Reborn. "So your Tomoe Mochizuki. Surrender or we will fight you.." he said, bring out his gun.
Tomoe smirks. "Why should I? My little Kazuko is enjoying it." he said.
Tsuna then comes in angrily and is in his Hyper Dying Will. "You may have blood of the Vongola Secondo and Minako-san has the blood of Primo. You have no right to do this to your own daughter!" he shouted angrily.
Tomoe laughs evily. "We'll see Vongola Decimo..." he uses a smoke bomb as he disappeared with Kazuto. But Kazuko is about to go with them but is left behind.
"P-papa...? O-Onii-sama?" Kazuko sobs.
As the smoke clears. Reborn and Tsuna saw her sobbing. "Poor thing..." Tsuna carried her.
Kazuko looks afraid and tried to push him away but Tsuna smiles at her gently. "I'm Tsunayoshi Sawada.. Your name is Kazuko ne?"
Kazuko nods shyly. But was unable to say any words.
Reborn smiles and patting her head softly. "I'm Reborn the Number 1 Hitman." He said with a smirk.
Kazuko giggles slightly. "Hitman~" she repeated.
Reborn smirked more at that. "Would you like to live with us? We will take care of you.." He said. Tsuna looked at him shocked.
"Reborn! I was about to say that!" he said.
"Heh. I will be her father Dame-tsuna." Reborn teases him.
"No I will be Kazuko's father!" he pouts a little.
"Then.. Shall we give her a new name then?" Reborn smirked.
"F-Fine.. How about Tsukiyoshi?" he mumbles. Kazuko heard it and smiles.
"I like it~!" she giggles.
Tsuna looks so happy. "Then your part of the Family.. Tsuki.." he hugs her.
"Arigato! Tou-san! Papa Reborn!" she giggles.
Tsuna and Reborn slightly blush at her cuteness. They brought her to her new home as her new life begins.
~END PROLOGUE~
A/N: How do you like it minna? I know it's not the best but I'll keep trying to have this story become famous. Thanks for reading minna!! *bows*

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Vongola XI Story
Fanfic20 years later Tsuna had adopted a girl named Kazuko Mochizuki but he gave her a new identity and a new life as Tsukiyoshi Sawada. Read this as your dying will depends on it~! Warning: Too many OCs x3