You Can Have My Back: Extra Edition (light novel) — Hitomi Hitoyo

It’s the wedding day of beloved youngest son Leorino and the king’s younger brother, Gravis. Despite the lovely ceremony, the Cassieux men seem to be beside themselves with grief. Destined Souls depicts the pasts and futures of twelve men, including Lieutenant General Lucas—who has always loved Ionia—and Crown Prince Kyle with his burden of blood. Meanwhile, Gravis’s valet, Theodor, closed off his heart after taking away the one person his dear master loved, yet Marzel, unable to bear the weight of sin, begins toying with him. Twenty-seven stories await in this long-anticipated extra edition!