Tsuna doesn't even realize when his hyper intuition is acting up anymore. It freaks both him and his guardians out whenever it does happen.

It started out small when he was in high school. He would wake up right before Nezu-sensei called his name to yell at him for sleeping in class. The first few times it happened he just thought it was a coincidence and never really thought that much into it.

When Reborn trained him especially hard for a few weeks it would happen constantly. People started to think he had a sixth sense or something, which he kind of did but he never told them that.

It started happening so frequently that even Nezu started to get weirded out and stopped calling him out quite as often so he wouldn't see Tsuna jerk up whenever Nezu looked his way. Hibari is the only guardian that usually took notice, besides Reborn of course who lessened his training to keep his student from sleeping in class.

Eventually it started progressing to where Tsuna would stop in the middle of talking to someone and look in the direction of the door. The person he would be talking to would sometimes get upset that he just stopped talking until they heard the door.

Tsuna would smile and excuse himself to get the door seemingly not even knowing he was looking at the door before it even rang. It happened at least twice with every guardian before they finally talked to each other and Reborn and figured out what it was.

Through Reborns training Tsuna's hyper intuition became even stronger than it was before. Enough so that Tsuna didn't even register that's what was making him wake up before he got yelled at or look at doors before they rang.

Nobody ever brought it up because it didn't seem to be bothering Tsuna so they left it be.

It eventually got so strong that some people thought he could predict the future. Sometimes even his guardians thought so too. Every time Lambo asked Tsuna something it would almost always be a no before Lambo even got the question out.

Some people chalked it up to Tsuna knowing Lambo so well but other people thought he had mind reading abilities, much to Reborns amusement. Tsuna always chalked knowing Lambo's question before he asked it because he had a very distinct look in his eyes every time before he asked for candy.

It wasn't until they were much older did Tsuna finally start realizing what was happening. They were in the midst of battle and his hyper intuition started knocking on his head with a jack hammer. He turned around and looked at everybody to see if he could find what was wrong but he couldn't find anything so he went back to fighting his own enemies. He heard a scream several minutes later, his headache having not let up until then, that he knew he had messed up.

He knew that scream anywhere. It was kind of high pitched and childish and he knew only one child who made that sound. Lambo. He turned around in time to see Lambo fall to the ground with a knife sticking out of his side and crimson flowing from the wound.

Tsuna's world stopped in that minute and fought with a new found vigor. He flew all across the battle field defeating everyone with that cool calculating glare of his. Only until the last enemy was down did Tsuna finally come out of his HDW mode and to the side of his youngest guardian.

"I'm so sorry Lambo. I knew this was coming and I couldn't stop it." Tsuna said remorsefully as he held a crying fourteen year old in his arms. Lambo made no other sound than his tears and sniffles and Tsuna let Lambo grip his hand when Ryohei had to pull the knife out in order to heal the wound.

Tsuna never left his bed side until Lambo woke up. He didn't stay for long as the guilt was over whelming him at seeing his youngest guardian laying in the hospital bed with a droopy drugged up grin instead of his usual smile.

It was several days later as Lambo was walking to get a late night snack when he saw the light to his big brothers office still on. Lambo lifted his hand to knock but before he even neared the door Tsuna was already calling out "Come in."

Lambo walked in to see Tsuna at his desk, hunched over and signing papers. With several coffe mugs around him and on the floor. "Tsuna-nii?" Lambo whispered as he walked closer to his older brothers desk slowly.

Tsuna looked up to see Lambo limping and holding his side and a fresh new wave of guilt hit him. Tsuna flung his chair back and rushed to his little brothers side and scolded him for walking around "What are you doing up Lambo you should be resting!"

Lambo waved off his brothers concerns and settled on his couch, Tsuna following quickly behind. "You know it wasn't your fault, right Tsuna-nii?" Lambo looked at his big brother hopefully. "I should have been paying better attention. I'm sorry."

"Don't you dare apologize for getting hurt. Never. It was my fault. My intuition acted up before you even got hurt. I should have known something was going to happen." Tsuna looked at his lap as he squeezed his hands into fists hard enough to draw blood.

Lambo quickly grabbed Tsuna's hands and forced his brother to stop squeezing his fists so hard. "It's okay Tsuna-nii, I'm alright. Plus I'll have a really cool scar and ladies love scars." Lambo tried to be cocky at the end and Tsuna appreciated his effort but he saw right through everything.

"Thank you Lambo, but you still need your rest. I will walk you back to your room so you don't fall on your way there." Tsuna said as he helped his little brother up and out the door.

"Stay with me?" Lambo asked as they finally arrived at his room. Tsuna smiled and nodded his head as he took his shoes, belt, tie, and suit jacket off in order to be slightly more comfortable.

When he was awoken the next day Tsuna felt better than he had in a long time and smiled at his little brother who slept soundly beside him.