That Time I Got Reincarnated as a Slime Season 3: Digression - Diablo's Journal

Storyline

Rimuru and Hinata, despite both holding similar values, fought fiercely. What happened behind the scenes of this complicated situation? From the perspective of Luminous Valentine, the one and only God of the Holy Empire of Lubelius and one of the Octagram Demon Lords. The details of the "Holy Demon Battle" are told, as well as some secret that she has never told anyone.