Married to the Hidden Lord

The Nether Lord, Landon, hides. To avoid a forced marriage, Clarissa Rivers, head of the Rivers family, chooses Landon as her live-in son-in-law, entering a fake marriage. Landon saves Clarissa from danger. To rescue Clarissa from the Soulsever Pavilion, Landon reclaims his identity as the Nether Lord, annihilates the organization, and they fall in love.