Seigi - a stoic, workaholic CEO (30 years old); Giichi - a painter with an artistic and romantic soul (27 years old); Toraji - a university student full of youth and enthusiasm (20 years old).

Seigi and Giichi are the result of a loveless marriage, their father - Kai Kueda then remarried his current wife - Umi, giving birth to you and Toraji.