Senyu

Senyu (戦勇。) is a Japanese web manga series written and illustrated by Robinson Haruhara. The story is set long ago when the Demon King was sealed by the legendary hero Creasion. A millennium later, a large hole appears in the world, from which a large number of demons emerge. The King orders 75 probable descendants of the hero to destroy the demons and save the world. The story follows Alba, hero number 45, and his quest to save the world. He is accompanied by Royal Soldier Ross, who is somewhat sadistic and serves as comic relief. Alba quickly teams up with the demon queen herself, revealed to be a naive, young pink-haired girl who accidentally instigated the demon crisis while making popcorn. Senyu starts almost exclusively comedic, but a more serialized story develops halfway into the first part. The series began publishing on the Nico Nico Seiga website and has an anime television series adaptation.