Isa Okino

Isa Okino is the protagonist in Flowers for Kasumi, and one of the main characters.

Isa is a third-year student at Kumashina Private High School. She is very kind and known to be a "mother-like" figure. She attempts to become friends with Kasumi, before she mysteriously dies. Isa enjoys befriending others and helping them whenever they need it.

History
Not much is known about Isa, except that she was found in Lake Kumashina at the beginning of the year, soon transferring to Kumashina Private after. Her past is a mystery.