Sauros Boreas Greyrat

Sauros Boreas Greyrat is a supporting character in Mushoku Tensei: Jobless Reincarnation. He serves as the head of the Boreas branch of the prestigious Greyrat noble family and acts as the landlord (feudal lord) of the Fittoa Region in the Asura Kingdom.

He is the grandfather of Eris Boreas Greyrat, father of Philip Boreas Greyrat, and uncle to Paul Greyrat. Sauros is portrayed as a strict, boisterous, and hot-tempered man in his 50s with a loud, imposing voice and demeanor—he often yells or even gets physical when displeased. Despite his rough and intimidating exterior, he has a softer side, particularly toward cute things or people close to him, and he can be reasonable at times.

In the story, he plays a key role in the early arcs involving the Boreas household and Eris's upbringing. (Note: He meets a tragic fate later in the series following major events like the Teleportation Incident/Metastasis Event.)