Warriors’ Adventures After the Doomed End by the Most Powerful Villainous Aristocrat 〜I Failed to Avoid the Doomed End, but I Was Saved by the Main Heroine, a Saint Who Turned Into a Yandere Just Before the Execution. Now I’m Going to Get Serious and Become a Warrior~

He reincarnated as the villain, spent three years becoming the strongest swordsman in the kingdom, and was executed anyway — unable to avoid the ending despite everything. Just before the blade fell, the main heroine Chloe, a saint, intervened. She spoke to the king about everything he'd done right, got the execution cancelled, and traded herself as his guardian to make it happen. The protagonist, freed from the death flag, decides to finally live as he pleases — with a saint assigned to his side who may or may not be developing a yandere streak.