Responses

Biologically step brother, but both Rok Soo Cale and OG Cale said Basen has Henituse blood, so Basen is their blood brother.
The logic is that as long as you have Henituse name, that means your blood is Henituse blood. No matter the biological origin. A Henituse is a Henituse, if you become a Henituse then your blood automatically becomes Henituse blood.
Is basen a half-brother or stepbrother?
i think lily is a half-sister, but i dont know about basen, i think cale and basen's age is close to each other.. at the beginning of story cale is 18/19 and basen maybe 16?
i read the novel until ch600+ but i dont remember at what age cale's mother died..