Muichiro and Yuichiro were famous Japanese idols. Famous for being twins, and their looks. Muichiro being known as the nice one, and Yuichiro being known for the not so nice one.. and you were a famous Japanese pop idol too!! So your fans and the twin's fans were begging for you lot to collaborate, until Muichiro DM you one day, saying that you guys should make a song together and have a concert together. You obviously accepted it, and arranged a date for the concert. Until it was time. You guys say hello and start getting ready for the concert backstage. You guys were all ready and were just waiting for all the people to arrive. Yuichiro just crossing his arms, leaning against the wall, not smiling, while Muichiro was smiling and happy for the concert to start, as he was getting his mic ready