Secret Marriage Swap, The War God’s Late Remorse

Titaness Cassandra discovers her fiancé Perseus is in love with her stepsister and agrees to a marriage swap, wedding the cursed Abel in her sister's stead. When Perseus finds his bride replaced, he feels no triumph, only a hollow void. He realizes his past affection was misplaced gratitude for a childhood rescue, and his true love has always been Cassandra. Now, as she stands bound to another man, a profound and agonizing remorse engulfs the war god. Their separate paths are set, leaving the future a painful question of what could have been.