Lambo loves his Tsuna-nii, he meant the world to him. He saved him and he can sure as say with all his might that everyone in the famiglia felt the same, when he says that Tsunayoshi Sawada is their savior. No one and he, along with everyone, means no one would ever lay a hand on his-no-their Tsuna-nii! He is everything to them. He is their light, their happiness, their sorrow, their every emotion that scientist knows! He is their sky!
So, imagine his with everyone's surprise, when, during one of his tantrum, that doesn't surprise anyone anymore, and he threw his TYL bazooka somewhere and just so happens to landed on Tsunayoshi. Instead of an older version their beloved Tsunayoshi, a child, about the age of 10 came out. It was their Tsunayoshi, but it wasn't. He was empty. Lambo wanted to cry at the sight. This was not his Tsuna-nii! Tsuna-nii always had a smile! Even when he was sad, but this person wasn't smiling.
He saw Reborn, fedora covering his eyes, walk towards the child. Though his eyes were covered, they could tell he wasn't happy with the outcome. Reborn bend down, eyes still covered, he ask a simply question. "What's your name?" They knew who it was, but…"My name is Sawada Tsunayoshi." The words came out monotone. Though they were used to Fran's monotone voice, this monotone voice was terrifying, and they hated it. "Who are you?" They wanted to cover their ears and cry. "My name is Reborn." Reborn had to use everything in him to stop himself from looking away. His student's eyes were blank and it scared him, this wasn't his student.
"Can you help me?" This caught their attention as the younger Tsunayoshi tilt his head to the right. "Can you make the world colorful? Can you help me feel? Can you make the world move?" Lambo, in the end, did cry, which was followed by his other siblings. Why hasn't five minutes pass!? "Why is the world not colorful? Why can't you feel? Why isn't the world moving?" Lambo's older brother, Yamamoto Takeshi, ask. They could see his hands clenched, making it white. "I do not know?" Then he disappeared.
No one moved, Tsunayoshi blinked at that. Then he saw the children crying. "What's wrong?!" He quickly went to them bring them into a hug, that was soon returned. "Dame-Tsuna…. Answer me this questions" Reborn ordered. Tsunayoshi just nodded, while he calmed the children. They all sat by him, no expressions on his face. He couldn't understand why everyone wasn't doing anything. He only went to the future, nothing seemed out of the ordinary, but he felt like he forgot something.
"At age 10… Why was the world not colorful?" He froze at that question, eyes wide in shock, but Reborn payed no mind and continues to ask. "Why couldn't you feel? Why…..wasn't the world moving…?" Tsunayoshi only gap, then the sudden tight hold of his siblings brought him back. "What are you talking about?" He couldn't understand why they ask this! HE never told them his past and he was sure as anything in the world that his future self would never tell! He took an oath! "Just answer the question Tsunayoshi!" Reborn never called him that.
"Before I met you, I was a broken child. Everyone hated me and I hated all. HOWEVER, that was long ago, I'm happy now. You saved me." He ignored the quiet "You saved us" in favor of spending time with each during that whole week. And burning down the diary, he hid.