Takama (タカマ) is a character that has yet to formally appear in any series. He is an orca and Idate's brother.
Like the rest of the orcas, Takama has a tail, a dorsal fin and two white spots on his head. Though, his dorsal fin is slightly longer and ragged looking compared to Idate's. The left white spot on his head has a white line over it, and while his tail has no caudal fin, it is merely the weird angle of his tail. He also has a face scar over his left eye.
His eyes are black, and he has a messy darkish-like gray long hair which was tied into a ponytail. Takama wears traditional Japanese clothing, which consists of a gray kimono, a black haori (jacket), black obi, black half gloves, and a pair of black zori (footwear) accompanied with a pair of white tabi (socks).
When he was younger, he wore a black business suit along with a black vest and a striped gray collared shirt. The hairstyle is still the same with a shorter ponytail and the white spot with a white line even though he didn't had a scar on his eye that time. His tail also already has no caudal fin.
He seems strict, and doesn't appear to approve of Idate.
Not much is known about him, other than him being the elder brother to Idate.
Idate is Takama's brother. He disapproves of him
Nagi is Takama's daughter.
The orca is possibly Takama's wife or perhaps, his significant other.