I Hacked The Cycle of Rebirth

Diffy was a normal person, slightly overweight, friend–and girlfriend–less, and always short of sleep. The little achievement he had under his belt was launching a nuclear missile toward Chine from Jepaan when one of his favourite airing animes got cancelled due to some stupid policies. Of course, he didn't actually launch a missile, he just hacked the global radars into thinking that. Another small merit he had was slightly disturbing the world's economy when his snob-nosed uncle with shit in his mouth flaunted about investing in stocks. He now made sure to throw a few pennies his way whenever he saw him on some corner-side with his bowl. Was Diffy normal? Yes, a normal human boy. Was Diffy maybe a genius? Yes, the greatest hacker to have ever been born! Haunting the world with his mischief, and being hunted by the governments worldwide with not a trace of his existence known, Diffy, the self-proclaimed "Slightly Mischievous Normal Hacker", dies in his sleep after being heart-broken at the heroine in the anime that didn't end up with the character he wanted. But would that be the end of his journey? When after his death he finds that every single atom of the universe has a specific 'code' that could be tweaked and adjusted to his whims. Or are there going to be universe-rending changes as in a foolish attempt of trying to observe the laws of the universe, he finds himself disturbing the cycle of birth and death— and reincarnated!!