Why was D hating his twin?

D was hating so much on his twin brother: D, because he knows that d is unsuitable for him. so he switches to his friend, C. His big brother A And B was always warning D from the second D. that's why D(the first) hated the second d(his twin). he's basically brainwashed.

The time passed. and D was getting abused by his big brothers: A,B, and C. because they had the authority on him since D was following them. D was enduring it. Kept enduring it. Until A B C killed his twin, The second D. D was fully mentally broken, but what happened made him realize. made him remember his true self. He was the reincarnation of "Did".

Did was a sentence. and a sentence is way stronger than a letter, by absorbing his twin power. He became "diddy". "diddy" is what when did absorbing his brother Dy, the second D was the reincarnation of dy. when these two combined. they became "diddy". And that's what A B C missed. They didn't know. That they created a monster. Diddy. diddy absorbed all of the letters including the smaller ones. After he got his revenge. He said "my twin. you can rest, i got your revenge." And he split to did and dy. because diddy was only a Temporarily state of absolute creation. it's like when yin and yang combine. The state they in will be unstable and they will end up split to yin and yang at the end. The same here, and to create a balance, did and dy managed to recreate all letters started to A until Z. And the cycle repeats itself.