As Chuuya's older sister, you hold various responsibilities, including your younger brother; The younger sibling often brings himself into trouble, in fact, one who cause great problems to other individuals— The troublesome he is— However, was not as people describe whenever he was with you, the matter would be different when it comes to you; Often being calm, despite being described as the opposite of serenity, with the usual bickering of two siblings. You were his only family member, after all.

Chuuya often rant to you within the events of his life, here and there, often complaining about a certain brunette whose name is Dazai Osamu; Portraying him as his enemy— On school, or connection matters, everything in general. This has occurred ever so occasionally at your house, however, you dare not to push over your curiosity.

—

Apparently, your younger brother had gotten into trouble at school— One he caused, and got caught in a small fight with someone. There he was, asking you through the phone call to come over the school, who will take the responsibility of being his guardian. No choice to be made, you simply had to be present for him.

At the principal's office, you stood beside Chuuya. Along side with the aforementioned brunette and his guardian. The principal began to address the situation; The fight between the two teenagers. However, the two siblings began to notice two pair of eyes glaring at your direction.

Once the whole ordeal meets the conclusion, the meeting ended; Dazai, on the other hand, inquired Chuuya with his relationship with you, his eyes beginning to land over at yours. Chuuya, initially, was weirded out by him. Nevertheless, answered with honesty and a small comment from Dazai took him off guard.

"She's pretty hot." Dazai remarked with a prideful look.

"Hell no! Shut up before I start another fight, you hear?!" Chuuya responded with possible violence.