Agent of the Realm?

Seria, the goddess of life and death, daughter of Chaos and Order, is the first ambassador from the unforgiving realm of Dedessia. Despite its harshness, where even gods struggle, Dedessia has forged a kingdom worthy of pride, and Seria is its chosen representative to the other realms. Her mission of first contact takes a violent turn when she is met with a fireball, a reception shocking for one who governs life and death. Her wrath is a significant threat, but the potential fury of her parents looms even larger should they choose to intervene. Seria, however, intends to deal with the situation her own way. The novel features a female protagonist, magic, a handsome male lead, multiple points of view, and kingdoms. It is recommended to read "The Court of Souls" before "Agent of the Realm." This novel is part of a larger series by the author, all centered around three main characters bound by an eternal soulbond, leading them to encounter each other across lifetimes. The male lead is a scientist/tinkerer/soulmage, and there are two female leads: a biologist/witch/juggernaut who uses internal mana for immense strength, and her mischievous/manipulative daughter who possesses skills from both parents.