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-12 years old-
Kouyou drew a thin and short line above Chuuya's head and with her fine handwriting she wrote his age next to the line. "You grew another three centimeters since last year.", she praised the little kid after measuring it and patted it's head. "You'll be a pretty handsome man in a few years, Chuuya."
The small boy smiled happily and had a slight blush on his cheeks. "Thank you, Ane-san." You could almost see the glitter and sparkling of happiness around him. "But now it's Dazai's turn!" He looked over to the brownhaired boy standing there not knowing what to say. He was smaller than Chuuya by a few centimeters and even they knew each other since first year of grade school and were pretty close to each other they seemed to love nothing more than bicker about anything as long as they can have the opposite opinion.
Kouyou measured Dazai's height and patted his head too. "You've grown 5 centimeters but you're still missing a few to catch up with Chuuya." She wrote the age next to his line and turned around to her lovely boys. "You'll both be popular among the girls starting your middleschool life tomorrow." She hugged them both and gave them a kiss on the forehead. "But be careful not to break the hearts of them, promise me?" Kouyou reached out with both of her pinky fingers and smiled.
"We're not children anymore." Chuuya and Dazai spoke at the same time and reached out for Kouyou's finger with their own pinky, a flush of red in their faces.
"Sure, sure~" Kouyou got up from the floor and her crouching position and left the room. "I'll have some business to attend. Enjoy yourselves."
They waved Kouyou goodbye and then Chuuya turned to Dazai. "Just to be clear: I'll only date someone who is taller than me."
Dazai pouted and crossed his arms in front of his chest. "No one wants to date you anyway."
-15 years old-
"Congratulations to your successful exams and being accepted into Highschool starting in April." They were both greeted by Kouyou with a bright smile. She hugged them both at the same time. "I'm so proud of you two."
Both of them struggled to get free. "Stop with that embarrassing stuff, Ane-san!" Chuuya blushed and turned his face away from her. "But thank you." He didn't want to be mean to her but it was really embarrassing in front of his giggling classmates.
Dazai stood next to Chuuya and made a half circle with his certificate. "Seems like we stuck together for three more years, Chuuya."
"I know. I'll take that challenge." With a bright smile he faced Dazai. They were the same size since a year and with a happy: "I won't lose against you." he laid an arm around Dazai's shoulders and ignored that his heart skipped a beat with the contact.
"Dazai-senpai!"
Both boys turned around and right in front of them stood a girl with dark long hair and a pin for a first year student on her blazer. She was a blushing mess and fumbled on the seam of her skirt.
"I am Izumi!" She didn't dared to look directly at Dazai. "Izumi Kyouka and I- I mean.." She swallowed and looked directly at Dazai. "May I have the second button of your blazer?" Suddenly she bowed deeply in front of the guys and you could feel how nervous that girl was.
"I'm sorry. I already promised it to someone else."
Both Kyouka and Chuuya looked surprised at Dazai. When did that happen? Chuuya took a look at his blazer but the button was still there. A wave of relief washed over Chuuya. So was that only a lie to not disappoint that girl too much?
Kyouka's face was still red and she had her grip on her skirt loosened. "May-May I ask to whom?"
"To him." Dazai laid an arm around Chuuya and smiled like he was the sun itself.
With wide eyes Chuuya watched Dazai and couldn't believe what he heard and why is heart suddenly beat like crazy
-18 years old-
"Again you two did a great job and my congratulations on getting accepted into college with two scholarships." Kouyou was on the verge to cry but she hold the tears back. "We prepared a party for you two so make sure you don't get lost anywhere beforehand."
Dazai and Chuuya both smiled at her. "Thank you." They both hugged Kouyou. "You're allowed to cry, Ane-san," Chuuya said and smiled. "Tears don't make you less beautiful," completed Dazai.
"Don't be so cheesy, boys. I'm not ready to let you go." Letting go of Kouyou she smiled at them. "I think someone is waiting for one you."
Chuuya turned around and looked at the girl right in front of him. She was almost a head smaller than him and had a pinkish colour on her cheeks.
She took a deep breath and started talking: "Senpai, I know you don't know me. I'm two years under you from class 1-5 and my name is-"
"Sorry, you can't have his second button." Dazai interrupted her and you could almost see how her world scattered in her eyes.
"But I love Senpai!"
Chuuya blushed like crazy with those words. "What do you mean, shitty bandage wasting-"
Dazai grabbed the button and ripped it of from Chuuya's blazer without mercy. "Because it's mine."
-22 years old-
His hand in front of him Chuuya stared at the ring on his left hand. It felt like it was there forever and not since yesterday. "I can't believe it."
Dazai snuggled against Chuuya's chest and intertwined there hands in each other. "They fit perfectly."
"That's usually the case with wedding rings."
Dazai laughed lighthearted. "I don't mean the rings, Chuuya, but our hands." He let them think down and kissed his husband's cheek. "Your small hand fits perfectly in my hand." He kissed Chuuya's hand near the ring and smiled. "But Chuuya, one question is still open."
The sudden change in Dazai's voice made Chuuya listen carefully. "What?"
"What was it with that-" Dazai thought a moment about his words. "I'll only date someone who is taller than me."
Chuuya blushed. "I don't know what you're talking about."
Dazai rolled over Chuuya. "And it was true that no one dated you expect that stupid Mackerel you had your first kiss with."
Chuuya blushed even more.
"Or that shitty bandage wasting human being you had your first time with."
By now it was probably possible to cook fried egg on Chuuya's face.
"That one-"
With a kiss Chuuya stopped Dazai from talking. "That one Osamu I married because I love him." He cupped Dazai's face between his hands and kissed him again.