G walked up to the door of the young Decimo. He's been contemplating on how to approach the brunette. He knew he shouldn't have said all those things to the Decimo, but he was just so pissed. And now, Tsuna was ignoring his presence and giving him the cold shoulder.

"You can come in, G." the emotionless voice of the young boss rang through his ears. He hesitantly opened the door to see the 19-year-old sitting on the windowsill. His breath caught in his throat when the young man's eyes were caught in the morning light of the sun.

"What is it that you want?" he said blankly. The red-head closed the door behind himself and locked it in the process. There was silence in the room for a while.

G got down to the floor and bowed with his forehead nearly touching it.

"I am sorry for what I've said to you. I know it was wrong of me to do what I did and say what I did. I can't take it back, but I'm truly sorry, Vongola Decimo-"

"Stop." Tsuna cut him off. The Storm did as was told and stayed bowing.

"Lift your head." was the command. G complied and slowly raised his head. Tsuna smiled.

"I forgive you." was all he said. G was shocked. He didn't think that he would be forgiven that easily.

"W-wha-?" he stuttered. Tsuna just laughed softly before approaching him and placed a gentle hand on the tattooed side of the first Storm's face.

"Get up and let's go. I have something that I think you could help me in. Do you think you can do it?" he asked. G stood up and grinned.

"Of course."

(::)(::)(::)(::)(::)(::)(::)(::)(::)(::)(::)

The mist uncovered the silent man that appeared. His melon-shaped hairstyle stands out the most other than his clothes. That mocking smirk on his face that contrasts with his bored gaze.

"Nufufufu... It's good to be back. Now, let's see how the Vongola has been since I left."

Laughter cut off his thoughts and he curiously moved to the garden of the Vongola Mansion. There, he sees a brunette laughing at a soaked red-head, known as G. He watched as the Storm Guardian sheepishly scratch the back of his head while- is that a blush?- holding a water pail with a string attached to it. Then, 4 more people came up to them: a young man with silver hair that looks similar to G's hairstyle, a young man with black hair and caramel eyes that is also laughing, a man with silver-white hair and a bandage on his nose shouting EXTREME, and a kid that greatly resembles that brat of a Lightning Guardian. Spade quickly enshrouded himself in mist to keep the others from knowing about his presence while he moves closer to them. But before he could get close enough, the brunette, who oddly looks like Primo, quickly turns to his direction with a surprised face.

"Show yourself." he demanded. The others quickly brung out their weapons of choice and glared in his general direction.

"Nufufufufu... I commend you on noticing me so quickly, boy." he said amusingly and came back out of the mist. The people he doesn't know immediately glares at him with so much anger that the melon- I mean Daemon would've visited 3 different Hells by now.

"Oya, oya, G. Why does these people resemble you and the others so much? Are they the other Guardians' brothers?" he asked.

"Shut up, melon-head. They're relate to us, but not in that sense." he scowled. The mist user just lifted an eyebrow in curiosity.

"Mou... Tsuna. When can we eat? I'm hung- oh! Daemon! When did you get back?" the blonde Vongola boss said as he exited the mansion with Chrome, Ugetsu, Knuckle, and Alaude trailing behind him.

"Ah, Primo. It would seem that you would have to introduce me to these young men. Especially that brunette who looks just like you." he smirked.

BANG!

The door to the entrance of the back of the mansion bursted open and out steps a man with looks similar to him with the same infuriating smirk and another man with black hair and piercing blue-grey eyes holding tonfas and glaring at the pineapple.

"What's wrong little bird? You're getting rusty. I haven't even got a scratch yet." the blue-haired man mocked. It only seemed to set the skylark off even more to attack the annoying man.

The raven went full speed ahead and raised a tonfa to whack the pineapple on the head, but stopped short when he heard something familiar.

Cli-Clink

Everyone turned their heads toward the brunette with his eyes shadowed by his bangs and a silver revolver resting on his shoulder...without the safety on.

"T-Tsuna-san? Why do you have a gun out...?" Asari nervously asked. Takeshi tried to pacify the young boss, but it didn't seem to be working which only seemed to get everyone, but Spade anxious.

"I've told you two to calm down already. Yesterday was the garden and today is, most-likely, the inside of the mansion."

"J-Jyuudaime..?"

"Sawada..?"

"It's bad enough that you do this at home, but here? That's a whole other thing. Are you two ready for punishment?" he smiled sweetly. The two Guardians backed away from the brunette.

"Tsu-Tsuna-kun? You're not going to do what I think you're going to do...are you?" Giotto asked warily. He got his answer when two shots rang out through the wind. His eyes widened when he saw the two men fall to the ground.

"Tsuna-san! What were you thinking?!" Knuckle and G shouted. Tsuna just merely walked over to his unconscious Guardians while the rest of his Guardians just sighed or groaned.

"Don't worry. It's partially their fault for that. They just activated Jyuudaime's syndrome that he caught when he was 16." Gokudera said. Yamamoto laughed.

"Why are you laughing? And what syndrome was he diagnosed with?" Giotto asked and walked near the brunette.

"The RSOOF Syndrome." the Tenth Gen. said all together.

The First Gen. looked confused and lost," The RSOOF Syndrome..? What does that mean?"

"It stands for Reborn's Sadism Out Of Frustration. We came up with that when Tsuna-nii got really frustrated after going paperwork, and we caused a big disruption at dinner one day and we all got punished in some of the most weird ways, but it was scary. That's why we try not to make him overly frustrated nor mad because we would hate to be on the receiving end when he's mad. Though those two have been on that end and they've been a bit scared of him since." Lambo explained and yawned.

"Ah! They look so cute!" Tsuna exclaimed and picked up a 5-year-old Kyouya and Mukuro. Everyone looked at them in surprise or boredom.

"H-how is that possible? How did they shrink?" Asari asked the question that was on his comrades' minds.

"I had my technicians make some bullets that could make anyone I shoot become the age of 5 to 6, but it doesn't work if you shoot that person twice with same bullet. They might die. Would you like to try them out on your Guardians?" he asked the blonde ancestor.

Primo's friends all glared at the blonde for having a contemplating look on his face. Primo ignored them and just shook his head, though he does have the thought of wanting to see how his Cloud, Rain, and Mist Guardians would look at the age of five.

"Nah. I'd most likely die if I do that, but back to my question earlier. When can we eat?" he whined. Tsuna sighed is resignation.

"Fine, fine. You can all get a snack. But G, you have to come back out to complete what I asked of you."

"Alright." he confirmed.

"Oh, and Daemon Spade. I will introduce you to the others later. For now, let's go eat!" Giotto exclaimed and ran back in the mansion with the others walking behind him in amusement. Alaude already left when the Decimo said they could get a snack.

"Well, what should we do?" Lambo asked.

"Oh! We should dress up Hibari and Mukuro! Haha. They look funny with big clothes on." Takeshi laughed. The two mentioned glared at him. Tsuna smiled and kissed both of their temples. This caused the raven and bluenette to blush and try to cover their face.

The maids will have a field day finding cute clothes for the young Mist and Cloud.