Monsters? They're All My Lovers

In a horror world, Kallen gains the 'True Lens': monsters are beauties. Flirting with White Wraith in an S-rank church earns exile. Mistaking Black Wraith for a lover sparks a feud; a soul pact seals both S-rank horrors. Recruited by Demon Wardens, he storms an SS-rank hospital against Bloodfeather King, building a harem of beautiful monsters.