Sai Nanami
Sai Nanami (, Nanami Sai)七なな海み SAIサイ is the son of the owner of the Nanami Conglomerate and older brother of Ryusui Nanami. He is a math prodigy and is said to be "a million times" better than the average person. [5]
About Sai Nanami
Sai Nanami (, Nanami Sai)七なな海み SAIサイ is the son of the owner of the Nanami Conglomerate and older brother of Ryusui Nanami. He is a math prodigy and is said to be "a million times" better than the average person. [5]