The Dark Lord's Confession

What happens if you end up summoning the Dark Lord, the whole continent’s greatest enemy? Due to a battle that took place over a thousand years ago, cursed people become demon-like magicians, and those who are blessed become holy knights who protect the kingdom. Lapis, who hides her identity of being a magician and aspires to be a holy knight, accidentally ends up summoning the Dark Lord. Along with the Dark Lord’s puzzling confession, Lapis’ journey of becoming a holy knight begins!

Original Webtoon:
Naver Webtoon, Naver Series

Official Translations:
English, Japanese, S.Chinese

Note: Due to constant questions the author has confirm that most to all characters are bisexual but there are a few gay characters. (Source)