Shizuo Heiwajima x Izaya Orihara
Picking up after Volume 13. Ignoring the Izaya x Shizu stuff. The premise is that after being injured, Izaya went to a foreign town. His legs aren't permanently damaged, though there's something wrong with them. As for his other injuries, apart from the scar left by the stab wound in his abdomen, only faint marks remain.
Shizuo Heiwajima stayed in Ikebukuro and carried on with his everyday life.
Three years later, Shizuo went looking for Izaya because of some feelings he couldn't quite understand. Of course, he found him in the end.
Mostly written as snippets, mainly in first person, then switching to third person later on.
A healing story with no angst, so the plot is pretty calm overall.
Updates are slow. I'm a high school freshman, need I say more?