Shirobuta Kizoku desu ga Zense no Kioku ga Haeta node Hiyoko na Otouto Sodatemasu (Light Novel)

In a world where Western and Asian cultures mix together, the only son of Count Kikunoi from the Kiryuu Empire, is Houchou. His life was already over at the age of 5. He, who was born in a corner of the country, has zero allies or useful skills in addition to being overweight. What’s more, it seems that Regulus, who suddenly appeared in his life and was presented for the Count as his brother, will kill him in the future for his right to succeed... His only weapons are the abilities of cooking and sewing, that he suddenly acquired along with the memories of his previous life.. In the midst of all this, Houchou ends up raising his younger brother, but “My brother is super cute, mmmh?” And now he’s acting like an idiot!