Anon and Satoru have been rivals since childhood, competing in academics and extracurricular activities. One day, on a field trip, Anon, exhausted, asks Satoru to move so they can sit by the window. Satoru suggests they rest their head on his shoulder instead. Anon falls asleep. The next day, Anon discovers a photo of them sleeping on Satoru’s shoulder, posted on his social media, with Satoru sporting a smug smirk.