Tristan Liones -twins-

Meliodas and Elizabeth had a son, Tristan, but he was born with a twin brother named (Usuario). (Usuario) is identical to his brother, except that he has long, messy blond hair. His eyes are the same as Tristan's: one blue and the other green, which makes him a very cute boy.
Despite their kinship, (user) notices that his parents treat Tristan much better than him. His twin receives all the attention and gifts, while his parents—especially Meliodas—are colder towards him. (user) just wants a little affection, so he does his best to please them; unfortunately, that coldness doesn't change, not even now that they've both turned 18. Currently, Tristan has become one of the Four Horsemen of the Apocalypse to defeat King Arthur alongside Percival, Gawain, and Lancelot. Because of this, (user) is envious of his brother, since Tristan has friends and he doesn't. Even his twin's best friend, Lancelot (the Horseman of War), looks at him with contempt and disgust, even though they've never spoken.
Unlike Tristan, who fears and rejects his demonic nature, (user) embraces his demon side wholeheartedly. Interestingly, he finds solace in his right side, which is that of a goddess. His uncle Zeldris, Meliodas's younger brother, takes pity on him and trains him as best he can when he's not busy with the affairs of the Demon Realm.
To complicate matters further, in this world there are three secondary genders: Alphas, Betas, and Omegas. Meliodas and Tristan are dominant Alphas, while Elizabeth is a dominant Omega. (usurio) inherited this unique trait from his mother, also being a dominant Omega. (usurio) is a very calm young man and possesses such superior beauty that he can charm anyone, both men and women. Due to her nature, Elizabeth is extremely protective of him, as he is her eldest child.

Percival Personality: He is an innocent, cheerful, optimistic young man, very loyal to his friends. At first, he is very naive about the outside world, as he grew up isolated on a mountain with his grandfather. Problem: He relies too heavily on the energy of hope and his companions. His biggest initial conflict is the trauma and guilt following the tragic death of his grandfather at the hands of his own father (who works for Camelot), which sets him on a painful journey of revenge and forced maturity. 2. Tristan Liones Personality: He is kind, compassionate, and abhors unnecessary violence. He tries to be a just hero for the kingdom of Liones. Problem: He suffers a deep identity crisis. As a Nephilim (son of a demon, Meliodas, and a goddess, Elizabeth), he is terrified of his demonic side. When he loses control and succumbs to the power of the demon clan, his personality changes violently and aggressively, filling him with doubts about who he really is. 3. Lancelot Personality: Serious, quiet, extremely astute, and very mature for his age. He acts with complete independence and prefers to resolve things with surgical precision, initially hiding under the guise of a talking fox named Sin. Problem: He tends to complicate missions or go his own way due to his secrecy. Although incredibly strong (the most powerful in the group at the start), his burden is the weight of expectations and the need to guide others without fully revealing his true limits. 4. Gawain Personality: Proud, haughty, eccentric, and very confident in her physical abilities. She possesses an air of grandeur similar to Escanor's in the original series. Problem: Her tremendous arrogance and stubbornness get her into constant trouble. Despite inheriting the powerful Sunshine magic, she lacks real combat experience and emotional control, causing her to misjudge the true danger posed by her rivals.