Thanks for the reviews. I hope the chapter doesn't disappoint. I know it's a reeeeeeeeeally short chapter but I'm so bad at doing long ones, gomen.

Tsuna walked up the stairs that led to the roof and saw Mukuro leaning against the railing.

'Ah, Tsu-kun, you're finally here.' Mukuro beckoned Tsuna over with his hand.

'So, you want to hear about the cause of hate between Hibari and I?'

I nodded curiously.

Mukuro looked at Tsuna and smiled genuinely.

'Well, believe it or not, when we were younger Hibari and I were best friends because of our parents. They worked together and were close friends so you can imagine Hibari and I saw each other a lot, plus we lived in the same neighbourhood. It was fine until we were six and a new kid moved in. I don't know her name; we called her Sunny because she never told us as she was quite quiet. She had brown hair that hid her eyes and never wore dresses or skirts like normal girls, just trousers. Hibari and I befriended her and I became,' Mukuro sighed, 'attached to her somewhat. Everything was fine for a while until I told Hibari that I liked her. He told me liked her too and we began to fight over her. I don't think Sunny realised.'

Mukuro looked over to Tsuna to see if he was listening and then continued with his story.

'Then Hibari's 7th birthday came around and his parents threw a party for him. My family and Sunny's family were invited. Hibari and I had been fighting nearly every time we saw each other, although I was the one who started it most of the time because I was scared she'd pick him.'

Mukuro leant against the railing, eyes cast downwards.

'I noticed her standing closer to Hibari more at the party and smiling at him more. I know we were only kids at the time, but you have to understand Hibari and I were very mature for our age. So anyway it was Hibari's birthday and the two of us glared at each other the whole day as to not trouble our parents by fighting. The parents asked us to play outside because it seemed they had something important to talk about. We were curious as to what was wrong so we listened to their conversation through the cat door. Turns out Sunny was going to be moving across the other side of town and would be attending a different school come fall.'

Mukuro took a deep breath.

'Sunny was crying by the time the parents were finished the conversation. We took her to the swing set where she wept silently. When she was finished Hibari and I decided to put our differences aside for that moment and have as much fun as possible with Sunny before she left. It was fine, and for awhile Hibari and I got on like we used to. Then after a while I went to use the toilet smiling and happy, and when I came back Hibari was holding Sunny's hands whilst she kissed him on the cheek.'

Mukuro sighed yet another time, he hadn't sighed this much in one day before.

'He saw me watching and smirked at me. We got into a fight straight after that and our parents had to pull us apart before we killed each other, literally. The next day Sunny left us, the one thing I regret is not going to say goodbye to her, and as far as I know Hibari didn't either. After that Hibari and I never saw eye to eye again. We'd always fight over something be it small or big. Thanks' to Sunny I realise how much I hate that guy. Also, if there was ever a way I could see Sunny again I'd know it was her if she had a bracelet that Hibari and I made her when we first met. It had-'

'Purple and Indigo beads,' I cut in and whispered, 'every second colour and the rope was black.'

Mukuro whipped his head around with astonishment to clash with tear filled amber orbs staring at him.

'How did you know?' Mukuro asked the sobbing boy.

'Because,' I said as I lifted my school top sleeve where the exact bracelet I described was tied around my wrist, 'I was Sunny.'