Chapter Text
Tanaka came home to his sister singing. That was not normal.
That same day, Tsukishima came home and his brother was whistling and smiling and hugging him… He just went to his room.
...0...0...0...
“So what are we going to tell them?” Saeko nuzzled into his chest.
“We’ll think of something.” He sighed and kissed the top of her head.
...0...0...0...
“Hey… Tsuki?” Akiteru knocked on his little brother’s door.
“What.”
“Can I talk to you?” Akiteru opened the door.
“What.”
“I met a girl.”
“Oh.”
“She’s really nice and sweet and she seems a bit rough around the edges, but she’s so smart and amazing-”
“I get it. You like her.” Tsukishima sighed. “What’s her name?”
“Saeko.”
“Sae...ko…”
“Mmm.”
“As in.. Tanaka Saeko.” Tsukishima growled.
“Yeah.” Akiteru sighed with a smile on his face.
“YOUR DATING TANAKA’S SISTER!?” Tsukishima yelled.
...0...0...0...
“Hey, baby bro?” Saeko looked at him over the table.
“Yeah?” Tanaka shoved food into his mouth.
“I started dating a guy.”
“What!?” Tanaka spit his food out. “Is he a good guy?”
“Yeah.” Saeko nodded. “He’s sweet and loving and he’s going to college and played volleyball and he’s not afraid to tease or play pranks. He’s a good boy.” She giggled. “And I think I love him.”
“Wha-” Tanaka just eyed her. “What’s his name?”
“Akiteru.” She smiled.
Tanaka squinted. “Akiteru? I know an Akiteru…”
“You should.” She smiled.
“It is the same one?”
She just nodded happily.
“You’re dating a TSUKISHIMA?”
...0...0...0...
“HEY! TSUKISHIMA! I HAVE A BONE TO PICK WITH YOU!” Tanaka stormed into the gym.
“Well, well, well. What a coincidence. I have a bone to pick with you .” Tsukishima stood from his stretches.
“Whats going on?” Hinata eyed Yamaguchi.
“Apparently-”
“WHY is YOUR brother dating MY sister!” Tanaka yelled and everyone froze.
“That.” Yamaguchi sighed.
“Coincidentally, I have the same question. Why does my brother even know your sister exists?”
“Boys…” Ukai warned.
“What was that?” Tanaka growled.
“All I’m saying, is that your sister and my brother have never met before. How does she even know she exists?”
“Boys.” Ukai went over to them.
“She told me that volleyball was involved. What’s up with that?” Tanaka got up in Tsukishima’s face.
“Well he told me that she was smart. What school did she go to?” Tsukishima replied.
“BOYS!” Ukai pushed them apart. “That’s enough. Cool down the both of you.”
“He started it!” They pointed at each other.
Ukai just sighed. “Listen. Your siblings are adults. They can date whoever they want.”
“NOT HIM!” They yelled again.
“Um… is this a bad time?”
“Akiteru.” Tsukishima crossed his arms and sighed.
“Hey. I thought there would be an issue today… Saeko called me.” He rubbed his neck. “Said things didn’t really go too well last night.”
“I remember you in middle school.” Ukai eyed the shorted Tsukishima. “You were good.”
“Thanks.” Akiteru blushed.
“Is it safe?” Saeko put her head through the door.
“Sis!” Noya ran over. “Is it true you’re dating Tsukishima’s older brother!?”
“Yeah…” She stepped into the gym before walking over to the two boys in question.
“Okay!” Suga stepped in, sensing the tension. “I have an idea.”
“What would that be?” Akiteru wrapped an arm around Saeko (who blushed uncharacteristically).
“Switch siblings for a day.”
Four sets of terrified eyes looked at him.