The Things You Can't Find Will Destroy What's Around You. Because They're Not There, There's Nothing That Can Be Done.

After Eiji stops giving Yuki her lesson, she decides to stop by and visit Touya's father in the hospital. Yuki and Touya chat on top of the building. Yuki begins to be really hard on herself. She then breaks down and cries in front of Touya. She then takes her usual "seat" on Touya's back and calms down. Then, on New Years Eve, Yuki goes to Touya's apartment. The two bring in the new year kissing. This is how 1987 begins... Source: crunchyroll