Disclaimer: I do not own Katekyo Hitman Reborn.

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Tsukasa was once again late but Hibari was not there to punish her. She just went to her classroom and noticed that Tsuna, Gokudera and Yamamoto were not there. Tsukasa can't concentrate at the lessons at all. When lunch came, Tsukasa was called to the reception room. Tsukasa went to the reception room. She saw there Tsuna, Reborn and the guardians.

"Is there something you need from me?" Tsukasa asked politely.

"Join our family?" Reborn said.

"Excuse me. Are you saying to join the mafia. I'm just a normal girl so why me? There's many good fighters out there so why me, the no good-Tsuka?" Tsukasa asked. She don't want to sound rude but she also doesn't want to join.

"I'll turn you into a good fighter" Reborn told Tsukasa. Tsukasa looked at the other people in the room. Tsuna was not pleased. She's sure that Tsuna doesn't want her to join and of course if Tsuna doesn't want, Gokudera too. Hibari were also not pleased. Lambo, Yamamoto and Ryohei doesn't care while Mukuro is being Mukuro meaning he's giving his creepy smile that's masking his opinion about it. Chrome was looking at Mukuro and knowing her, what Mukuro like is also what she like so it depends on Mukuro whether she's accept her or not but she can't read Mukuro's face. There's mixed emotions in it. There's time when he'll show that he agree and time when he'll show he disagree.

'He've gotten better in hiding his emotion but didn't I order you to stop wearing that stupid creepy smile of yours to hide your true feelings? You promised me. Keeping what you truly feel inside for a long time is not good but I guess I don't deserve to be angry at you for breaking your promise because I'm the one who broke my promise first. Sorry Mukuro but all of you doesn't deserve to suffer.' Tsukasa thought but her expression doesn't change. It's still that calm and doesn't show any emotions. She knew that Reborn can't read minds. He's just guessing what a person was thinking by his/her facial expression and masking her feelings and keeping her face from showing anything she's thinking is one of the things Reborn taught her.

'This girl is really hiding something. I can't read her facial expression at all. She's good but what is she hiding?' Reborn thought inwardly.

"Please let me think about it. Give me some time." Tsukasa requested.

"Of course." Reborn said. With that said, Tsukasa went out the reception room. When the classes are all over, Tsukasa decided that she should see first whether they need her help. If she saw that they need her help, she'll join but if she saw that they can manage even without her, she'll refuse. She started stalking the guardians. It seems like her timing was perfect. A group of mafia started attacking the guardians. She saw her guardians beating every single enemy that attacked them but they're having a hard time. 'Those mafia attacking then was still in a low level. To think that they're having a hard time beating them. If a strong family attack them, they'll be dead by now.' She said to herself. She saw one of enemy that Yamamoto was fighting let his guard down. There's many place where Yamamoto can attack. Without a hesistation, Yamamoto use his sword to attack him ending the man's life. After some minutes, they beat all those men. 'Yamamoto… That's not the Yamamoto I used to know. The Yamamoto I knew won't attack someone who he knew can't fight him. He won't use the other's disadvantage in order to beat him. He's not like the carefree an cheerful Yamamoto that washes away the guilt and sadness we feel everytime we're forced to fight or even kill someone.' Tsukasa thought sadly. She sighed. 'How did they sink this low and when did they became this weak?' Tsukasa asked herself. "Reborn, I'll join but I won't be much of a help after all I don't know how to fight that much." Tsukasa said to the man hiding behind her. The man came out.

"Since when did you knew I'm here?" Reborn asked.

"You've been following me since I came out of the reception room." Tsukasa said.

"You knew since the start and yet you tell me that you're not good at fighting." Reborn said.

"It's true. There's many people in this world and you never knew if there's someone stronger than you but I can assure you that there's always someone stronger." Tsukasa told Reborn.

"You're so mature." Reborn told Tsukasa.

"You don't know me, Reborn. There's many thing about me that have to be kept a secret. I'll only tell you one thing. I'm not as mature and as innocent as you think. I'm just someone selfish." Tsukasa said to Reborn.

"You don't live with anyone, right?" Reborn asked.

"That's right." Tsukasa answered.

"Live with us. It's your duty. Besides no one will worry since you don't have any family." Reborn said.

"… That's right. I'm just a girl without family." Tsukasa said. 'I have no family now. I don't even deserve to see them now because I'm the one who caused them to suffer.' Tsukasa said to herself. "I'm going to pack my things." Tsukasa said.

"I'll send someone to fetch you." Reborn said. Tsukasa went to her house. She started packing her things. While packing, she saw a photo album. She smiled. 'Only I knew the truth now. Even though it hurts, I'll still treasure every moments I had with them. Those moments are my only treasure now.' Tsukasa thought. She went to sleep.

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Author's note: Thank you for those who reviewed. This is a fem27 fic. I'm not against boyXboy but I can't seem to write one. It's hard so I changed Tsuna's gender.