Hana Ikeru Doutei-kun

Tsujido Ei is a flower arranger who has been living with his step-brother, Natsuki, and dealing with complicated emotions toward him. As Ei tries to maintain the role of a responsible younger brother, Natsuki frequently behaves inappropriately, such as hugging him while wearing only underwear. Ei is left questioning his own thoughts when Natsuki says things like, "As your older brother, I'll take the responsibility of protecting you." The story explores the chaotic and confusing dynamics of their family relationship.