So aside from Lufasu Mafaal, Benet was the most suitable candidate for the title of Supreme Overlord/Leader and the near-demise of humanity could've been prevented had she participated in the initial war against the Demons
but she said "Naah, f*ck it, I'm gonna sleep a bit" and pull a NEET move, and only crawled out when her own kingdom was in grave danger.
The ultimate being only moves when she/he has the motivation huh.
but being a blood-thirsty yandere and all, she still looks adorable tho.