Kinda golden. But some parts hv a slow pacing and a tad tmi.
Mc was the younger brother of the king of secrencia. He sacrificed his life but still cant stop the enemies from taking over his homeland & the war happened only cuz the enemies wanted the axis of time. After he died, it seems the king, chase had used that relic to make mc tome travel a decade into the past. This time, mc is posessing the body of the weak third prince of the enemy country, kaisier. Turns out the body wasnt weak but he was poisoned and despite hving explosive genius ability for magic, he never could use it before cuz of the poison. He also has the life of blessing which helps w healing. Anyways recently mc became the student of a reknowned mage, then poisoned himself so he could bring down the queen who's been feeding him poison teas, and also made his father the current king gain affection for him. He also managed to save a dear friend of his from the past.
Reborn as the Enemy Prince