Gojo's Older Brother, Reincarnated as a Demon King

[Highlighted] This doesn't feel right, so Gugu plans to revise it into a reaction-style story. Babies, please don't read it for now. Gojo Akihara, a Demon King reincarnated into another life. In his previous life, he was so ravenous that humans called him the Tyrant of Greed, the Dreadful Demon King. After becoming an ordinary human in this life, he had planned to spend his days lazing around, but... "Why does my little brother's cursed energy taste so good?!" The Demon King, who had never tasted such a delicacy, was stunned! But just as he wanted to take a few more bites, his delicious little brother met with disaster. Curse users, the Gojo clan, and the entire jujutsu world all stood in his way. Gojo Akihara (grinning with shark teeth): Looks like none of you have ever had a taste of my Demon King beatdown. So, to get his little brother back, the Demon King, who had spent several years lazing around in another world, finally got back on his feet. He punched the rotten higher-ups, kicked the Big Three Families, and thoroughly put the entire jujutsu world in order. Until everyone remembered that day. "Roar!" Beneath the scorching sun, the young Demon King rode his demonic dragon and smashed his way into the assembly hall of the higher-ups, announcing that he was officially taking over the jujutsu world. And when the jujutsu world became this Demon King's territory, The white-haired, blue-eyed Six Eyes of the Gojo clan became the child he cherished most. Satoru: "Today I want grilled brain!" Akihara: "Someone! Roast Kenjaku for me!" "...By the way, cook it all the way through, or Satoru will get a stomachache." * Satoru knew he had an older brother. Although his brother had zero cursed energy, he was absurdly strong, and his favorite thing to do was cuddle up with Satoru. When Satoru was little, his brother would often bring him things to nourish his body, calling it sustainable development. Like finger-shaped chocolate (Sukuna's fingers, purified version) Like strange little paper candies (pages from the Book, stolen from Yokohama) And a big, protective sword (the Sword of Damocles) These things gradually enriched Satoru's childhood, and all sorts of strange people began appearing, too. After getting used to sorcerers, mafia members, and Kings, Satoru discovered one day that his brother had brought someone home. "This is your sister-in-law." His brother pointed to the black-haired man with a topknot, wearing monk's robes and smiling with his eyes closed, standing beside him. His "sister-in-law" smiled and greeted Gojo Satoru. "Hello, Satoru." By then, Satoru was already an adult. His fists were clenched tight. #I thought you were my buddy, but you want to woo my brother# #Today I'll do the righteous thing and end this friendship!# Long ago, Naughty little Satoru once sneaked into his older brother's room to cause trouble, and accidentally opened the Demon King's Book of Prophecies. It said: "You are the one treasure the Demon King cannot take by force." "You are bound to him by blood and bone, the anchor of his humanity." If being the strongest becomes a burden, then I will be the blade that clears every obstacle from your path. I hope you will always be free. Reader's Guide: 1. The male lead is the strongest! But this is also a story about raising a kid. Most problems are resolved before Chapter 30; after that, the focus is on little Satoru's daily life as he grows up. 2. The Western fantasy setting in this story is Japanese-style Western fantasy, and includes a System. A huge crossover mashup! 3. The character designs were commissioned from an artist by the author, not made from templates. They are not based on any existing characters. Since they are black-and-white illustrations, some details can't be shown, but they are not based on existing characters!! 4. The male lead and Satoru grow together. Their brotherly bond is beautiful. There will be both the older brother raising the kid and the older brother being raised by him. Don't expect the older brother to be perfect from the start. He used to be a Demon King! A Demon King! He doesn't know how to raise a kid! He has to learn! 5. The male lead is so lazy that, apart from his little brother and food, he has no motivation at all, so he is the bottom. (There are other reasons, but you'll have to read the story for those.) 6. Kenjaku's name is deliberately misspelled because when I write it correctly, JJ inexplicably hides the synopsis (so exhausting). 7. There is a mountain of original settings! A mountain of original settings! The worlds will merge later on!! 8. There will be both kid-raising daily life and plot. Little Satoru won't grow up all at once, and the romance comes later. They'll probably become an official couple after he reaches adulthood (JJ's rules). Theme: Celebrating beautiful brotherly love