– Hide’s the sunshine boy, but he and Oneshot!Kaneki became friends precisely because Kaneki didn’t like him. Hide just wore Kaneki down until Kaneki realized he missed Hide’s presence.
– Touka was once given detention for trying to punch another student. Hide and Kaneki arranged a plan for her to escape the detention room through the window, go get cake form the nearby bakery, and return in time.
– Hide loves passing notes. It annoys Touka, but she also likes breaking the rules. Kaneki hates it, but he’ll read them for his friends.
– They went to prom as a three-membered date. It was Hide’s idea, and Kaneki was quite enthusiastic. Touka was over the idea of prom, but she agreed for her friends.
– Oneshot! Kaneki can actually out-dance Hide, once he moves past his self-consciousness.
– Hide tried to lift Touka and dropped her instead. Oneshot!Neki caught her (or did she catch him? It’s unclear). And that’s how he won the Great Prom Dance-Off.