Kōyō holds herself with grace and dignity but wastes no efforts hiding her dark nature. As a result of her failed escape from the Port Mafia, Kōyō is an extreme cynic, jaded against things like hope and love. Kōyō doesn't believe in the benefits of 'light' and claims that people born in 'darkness' are destined to never branch out for the light. With her eloquent speech, Kōyo often equates people to flowers. Kōyo both detests and fears 'light', thinking there's nothing but disappointment.