Oikawa spun the bottle for the next person he was going to dare. The bottle landed on (Y/n), Aoba Johsai VBC's snappy, sarcastic manager who was known as "the bad boy manager," or in the team as 'Zumi. He acts much like Tsukishima, but he's an Iwaizumi, specifically he's Hajime's twin brother.

"Oh, Zumi-chan! I get to dare you!" Oikawa exclaimed. Mattsun eyed (Y/n), smirking. "I dare you to... hm, oh I know! I dare you to act like you're dating Mattsun for a week!"

(Y/n) glanced at Mattsun whose smirk turned wider.

"Hm, sure. I don't have a problem with it." Mattsun declared. (Y/n) smiled, knowing what Mattsun was planning on doing; giving the team a heart attack. See, (Y/n), and Mattsun were best friends in their junior high years, but they started dating when they were second years in Aoba Johsai. Only Makki, being Mattsun's best bro, and Hajime knew about their relationship. Also because Makki, and Hajime caught the two kissing at the back of the gym.

"Yeah, of course, I love you so much, Issei," (Y/n) said with a sarcastic tone as he kissed Mattsun's cheek. Mattsun laughed along at the joke (Y/n) was making while Makki snickered at the satire, and the reality that the two were dating.

"Whoa, OK, sir. You already act like a couple I see."

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𝐃𝐚𝐲 𝟏 -> 𝐌𝐨𝐧𝐝𝐚𝐲

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(Y/n) now openly held Mattsun's hand in the campus. The two were pretty chill about the strange looks of confusion they got, but there was this one guy who just made the whole volleyball team's blood boil.

"Uagh, disgusting faggots! Don't come near me, fucking homos, you'll spread the gay to me!" Some random third year yelled, catching the attention of some students, and two teachers.

"Oh, I'm sorry, I didn't realize that homosexuality was a fucking flu, dumbass bitch!" (Y/n) retorted, anger, and bitterness in his words.

"Iwaizumi-san, language! The dean's office, now! And you too, (Random name)-san, we do not tolerate discrimination here!" One of the teachers yelled.

(Y/n) rolled his eyes. "Whatever. Let's go, Mattsun." He said as he dragged Mattsun along with him to go to the dean's office.

Later, the Seijoh VBC heard of the story, and best believe they are not happy with (R/n). The whole thing turned into the team plotting an indirect crime, and Oikawa preaching to his fangirls about how (R/n) was being homophobic to his best friend's twin. The fangirls, knowing them, would do anything to make Oikawa happy, and are fujoshis, ended up beating up (R/n) until he begged them to leave him alone. And how did they get away with literally committing a crime? One of the fangirl's mom is the town's chief of police, so she bailed them out of trouble with the promise that they won't do it again.

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𝐃𝐚𝐲 𝟐 -> 𝐓𝐮𝐞𝐬𝐝𝐚𝐲

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(Y/n), and Hajime were early to morning practice.

"What are you, and Matsukawa up to?" Hajime asked. (Y/n) looked up at his brother from his statistics book.

"What do you mean?" (Y/n) asked, smirking. "We're both innocent."

Hajime rolled his eyes at his brother's antics. "I meant why are you pretending to fake date him?" Hajime explained.

"Yeah, we're pranking the team." (Y/n) chuckled. "Anyways, I'm going to take a piss, bye Iwa-chan." He said as he speed walked away.

"Wha- you have the same name as me!"

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A bit later, everyone arrived at the gym. Mattsun looked around for the elder Iwaizumi twin.

"Iwaizumi, where's (Y/n)?" Mattsun asked. Hajime, who was telling Oikawa to stop trying to do knock-off ballet, looked up.

"Oh, he went to take a piss a few minutes ago." Hajime replied.

"Oh, OK." Mattsun said as he walked over to the bathroom. He pushed open the bathroom door with much force.

"Ow, what the fuck?!" (Y/n) yelled as he clutched his left hand. "Matsukawa, my fucking hand!"

"Oops?"

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The whole day (after (Y/n) went to the hospital), Mattsun showered (Y/n) with anything that may convince the bitter male to forgive him for breaking his good hand.

Kisses? Check.

Hugs? Check.

Buying him lunch? Check.

At this point, they were at the Seijoh VBC third years table at lunch.

"(Y/n), I'm sorry." Mattsun apologized for the fuck knows how many times already.

"It doesn't change my broken hand, Issei! What the hell can you possibly do that will make me forgive you?!" (Y/n) yelled. "I have a test next period, and I can't do it because my good hand is broken!" Mattsun smirked. He knew exactly what he was going to do. He kissed (Y/n) square on the lips. Oikawa was shocked, understandably, while Hajime looked at the two with the 'what the fuckidy fick fuck is wrong witn you people' look, and Makki was laughing so much, he shot out some eggs from his nose.

"What the fuck?!" (Y/n) flabbergasted.

"We can act like a couple, right?" Mattsun asked.

"Oh yeah, I forgot about that." (Y/n) chuckled. "Anyway, you better figure out how I'll do that test."

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𝐃𝐚𝐲 𝟑 -> 𝐖𝐞𝐝𝐧𝐞𝐬𝐝𝐚𝐲

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"OK, class, I will be passing out your midterms." The teacher, Hayashi-sensei, announced as he passed down the class' midterm exams. (Y/n) sat down, stressed out at his exam scores. He wondered if his score would be OK, since his handwriting is shit on his right hand, despite being ambidextrous. He just prefers to use his left hand, and has used it for so long that his right hand's hand writing has become shitty as hell.

"Iwaizumi-san, you're the all year winner of the calligraphy contest in our preference, how did you manage to get your handwriting so awful for this test?" Hayashi-sensei asked. (Y/n) felt his whole world crumble. The best calligrapher of the Miyagi preference has awful right hand handwriting.

"AAAAAAAAAAAAAGH!"

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"Are you OK, Zumi-chan." Oikawa asked the dying male.

"No, I'm not fucking OK! My handwriting on my right hand is shit, I hate it, I wish both my hands were left hands!" (Y/n)'s voice echoed in the gym as he put his hand back on his face.

"Ooh, yikes, Zumi." Makki chimed in.

"What the hell!" (Y/n) exclaimed as his body was lifted up across someone's shoulder. It was Mattsun lifting him up, and (Y/n) being 5'6 (167.64 cm) really didn't help his case. "If you're trying to be romantic, then it's not working."

Oikawa laughed a bit.

"I'm not trying to be romantic, love. I'm just bringing you back to the benches, so you don't get smashed in the face by the balls." Mattsun smiled as he triumphantly carried (Y/n) to the benches.

"Who cares, my calligraphy career is dead, might as well mash my face with a volleyball coming 69 mm a millisecond." (Y/n) whined as he got put down.

"Are we just gonna ignore the fact that they actually act like a couple? It's throwing me off a bit." Oikawa said to Kindaichi, and Yahaba.

"Wasn't Matsukawa-san just kissing Zumi-san yesterday?" Yahaba asked.

"Yeah. They really are taking your dare seriously, Oikawa-san." Kindaichi commented.

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𝐃𝐚𝐲 𝟒 -> 𝐓𝐡𝐮𝐫𝐬𝐝𝐚𝐲

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Thursdays are the days that the Seijoh third years gather up at Oikawa's house to help each other with homework. At this particular moment, (Y/n) was just about to explode. He just couldn't solve this math question.

"Mattsun." He called out. Mattsun walked to where he was.

"Yeah?"

"I can't solve this."

Mattsun sat next to (Y/n). he started to try to explain calculus to (Y/n) who was beyond confused at the concept. At some point, he must've been really tired from trying to use his brain, since he flopped down on Mattsun's lap, asleep.

"Huh, (Y/n) fell asleep." Mattsun said.

"Oh god. OK, I'll just do his homework for him or something." Hajime sighed in defeat as he continued to do his history homework sheet.

Mattsun looked at his sleeping boyfriend, a smile appearing on his lips. He finished (Y/n)'s math homework question for him, then proceeded to finish his own homework.

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𝐃𝐚𝐲 𝟓 -> 𝐅𝐫𝐢𝐝𝐚𝐲

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(Y/n), and Mattsun ditched class because they can. They were, to simply put it, bored of school. They decided the best place to go was to Mattsun's house, since his parents were on a business trip. They were cuddling in Mattsun's living room while watching A Silent Voice when (Y/n) suddenly spoke.

"Matsu, when are we telling the team that we're actually dating?" He asked.

"Hm, we'll see. We can tell them on the upcoming Monday." Mattsun answered.

"OK."

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A bit later, the couple heard a knock on the front door.

"I'll get it. You can stay here." Mattsun said as he walked up to the door.

"OK."

A few minutes later, Mattsun came back with Makki, and Oikawa. They didn't bring Hajime, since they also decided to skip school, but they're scared that he'd snitch on them.

"They skipped too, and they figured that we skipped as well." Mattsun explained.

"Oh, OK." (Y/n) replied as he just continued to watch the movie without a care in the world.

Oikawa, and Makki sat on the floor, also watching the movie half way in while Mattsun went back on the couch, cuddling (Y/n).

"Zumi-chan, Mattsun are you cuddling?" Oikawa asked as he put his head up.

"Yeah? We're still doing that dare y'know?" (Y/n) replied.

"Suit yourselves." Makki snickered as the four continued to watch the movie.

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𝐃𝐚𝐲 𝟔 𝐚𝐧𝐝 𝟕 -> 𝐒𝐚𝐭𝐮𝐫𝐝𝐚𝐲 𝐚𝐧𝐝 𝐒𝐮𝐧𝐝𝐚𝐲

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Mattsun and (Y/n) had it all planned out. They were going to reveal their relationship to the team on Monday, by not going to the gym. Instead they'll go to the back of the gym, and kiss. The team will probably send someone to look for them, which the person will intern find them, and either

They will go tell the team what they saw

Or

They will confront the two, to which they have no choice but to tell the person that they're dating

None of the above

They'll see what the outcome is, and what to do in that case. Now, if you're wondering why they're even doing this, it's because it is extravagant, and they, being the baddies they are, didn't want the big reveal to be such a bored fest.

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𝐌𝐨𝐧𝐝𝐚𝐲, 𝐭𝐡𝐞 𝐛𝐢𝐠 𝐝𝐚𝐲

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(Y/n), and Mattsun hasn't gone to practice yet, and Oikawa was trying to find them.

"Yahaba! Could you go find Zumi-chan, and Mattsun?" He asked.

Yahaba nodded. "Yes, captain."

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Yahaba walked to the back of the gym to try to find the couple. He looked at the back of the gym from behind the wall, and my dear lord was he shocked. He saw (Y/n) being kabedonned to the wall by Mattsun while they were kissing, and frankly, he was stuck. Yahaba quietly walked away to the gym.

"Oikawa-san. You remember that dare you dared to Zumi-san, and Matsukawa-san?" Yahaba asked.

"Uh, the one dare to act like a couple?" Oikawa asked.

"Yeah. They're kissing at the back of the gym!" Yahaba exclaimed.

"What?" Kindaichi asked.

"Uhm. I gotta check this out." Oikawa said as he ran to the back of the gym, as well as Kindaichi, Yahaba, and Watari (who was observing the tea in the background the whole time). They raced to the back of the gym where they did, in fact, find (Y/n), and Mattsun kissing.

"Oh my gosh, are you actually dating?!" Oikawa exclaimed.

Mattsun, and (Y/n) looked at the shocked four, and smirked.

"Duh," Mattsun answered.

"Obviously, what do you think?" (Y/n) asked.

Watari laughed a bit, while he watched Oikawa, Yahaba, and Kindaichi's jaws drop on the floor. It's such a blessing to be a background character who gets all this tea.

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