Sakusa, Suna, Atsumu, and Osamu went to an amusement park and on a ride. Atsumu and Osamu screamed from start to finish, making the exact same facial expressions. Suna, knowing this, chose not to sit next to them but in the front with Sakusa and open his phone for filming. Ironically, Sakusa was even more terrified of rollercoasters than the Miya twins, clinging to Suna like his life depends on it (at the moment he thought it did), which almost caught Suna off guard, causing him to disbalance and his phone to almost fall. He regained his balance back, and even though he was already cackling his heart out at the Miya twins screaming, Sakusa's screaming and discovering that he fears rollercoasters made him laugh even more.
On his phone there lies a blurry and badly taken photograph of them on the ride - Suna laughing, Miya twins screaming holding onto the railings for their dear life, and Omi scowling and screaming also holding on to Suna for dear life.