"Hey 'Samu, I heard you reject a love confession from class 3 cute girl? Wow, like, there are so much boy after her right?"
Osamu just stare at his twin with lazy look then continue reading the book he already read from yesterday.
Atsumu smile at his twin. Not a good smile if you know Atsumu well.
"Say 'Samu, are you, by any chance, still keeping that stupid promise?" Atsumu say while smirking
Osamu who is currently reading so seriously look a little offended by his twin statement. Well maybe from outsider point of view like Atsumu, the promise he made with his special one sounds stupid. But still, Atsumu know well what that promise means to Osamu, and he still mock Osamu about it.
Osamu put a bookmark between the pages he currently reads and close the book. Then he turns his body to his brother direction
"You know, 'Tsumu? Actually, I don't really care about your opinion towards my love life. Please just take care your own love life. Oh sorry, I forgot, you don't have one" Osamu say with mocking tone.
Osamu who lost his interest in reading get up and left his twin behind. He doesn't want to end up having another useless fight with Atsumu, even though that what usually they do. But just for today, Osamu need his time to be alone, because his twin brings this topic up, he can't stop thinking about it. Well it's his important promise after all. It's not like he forgot his promise or what, but sometimes he just don't really think about it.
Atsumu who left alone in the room just staring at his twin's back and smile, now a sad one. He actually kind of feel sorry towards his twin. After all, it already 9 years since the promise made and Atsumu himself not sure the other one still remembers the promise. Osamu himself don't even know where his special one currently at.
***
Osamu first meet him 11 years ago, the Miya family just move to this neighborhood because the twins father new job take place at this city. His new neighbor is the Hinata family. They're so friendly to the point helping the Miya family when they just got in. Osamu's parents usually left the twins alone to play with their new neighbor child to play. That child name Hinata Shouyou, the child with bright orange hair, just like his father, a big round eye that twinkling when staring to someone and a loud high pitch voice when talking to someone. At first both Osamu and Atsumu consider Shouyou as a troublesome child and trying to avoid him as much as possible.
Then someday when Osamu walking home from convenience store to buy new pudding after Atsumu eat his pudding, he saw Shouyou currently playing alone at the park. Seems like the local child refuse to play with Shouyou because of his bright hair. They find it unusual and stay away from him. Osamu don't know what kind of spirit currently possess him. He just walks towards Shouyou and offering him one of his pudding
"You want pudding?" Osamu ask while handing the pudding to Shouyou
Shouyou who is surprise to find someone try to talk to him just staring at Osamu
"You don't want it?" Osamu ask once again
"I-I want it, T-thank you very much" Shouyou stutter at his words and take the pudding from Osamu hands
They are eating in silence. Osamu is not fond of this uncomfortable silence then trying to say something. "So, your name is Hinata right? How old are you?"
Shouyou look at Osamu for a while then answer Osamu's question "Yes, my name is Hinata, Hinata Shouyou, You can call me Shouyou actually, also i'm 6 years old, what about you?"
"I'm Osamu, Miya Osamu. 7 years old"
"Oh! you're 1 year older than me, Miya-san" say Shouyou
"You can call me Osamu, you know right I have a twin, it's confusing when someone call Miya to one of us"