Granbell Rosso

Granbell Rosso is the current head of Rosso family and the true identity of  Seven Celestial Sages 「Sage of Sun」 Gran.

Background
He was once a Hero who dueled Demon Lord Ruminas Valentine and lost. He then admit his defeat and become her subordinate under the name of Sage of Sun Gran.

Story
He incited the betrayal of Seven Celestial Sages of Ruminas in order to eliminate both Demon Lord Rimuru Tempest and Hinata Sakaguchi who were both in the way of his plan to conquer the human world through economics.

Relationship
Ruminas Valentine: Even though he had worked under Ruminas for a long time, as a hero he always feel that defeating demon lords and protecting mankind is his destiny.

N|Mariabell Rosso: His daugher who he trust and care for greatly.

Lancelot: His friend and partner.

Maria: His dead wife whom he seek to ressurrect.