I am completely stumped here. I will try to be as concise as possible. But it's been 20+ years and I only remember a small portion of it. I'm almost positive it's Japanese in origin and not a western manga-like. But I could be wrong. Just take every possibility into consideration.
I think it may have been a one shot and not related to any pre-existing series. There's a guy and a girl. I'm pretty sure they are a couple. They also appear to be homeless and living in an old building with a bunch of stray cats. One of the couple goes out to buy cat food and is killed. It ends with that character laying there dead and I think the other character waiting for them not knowing they are never coming back.
I know this is a terrible description. But that's what I remember and it's probably close enough to the actual story. It's haunted me for two decades now.
I think it may have been a one shot and not related to any pre-existing series. There's a guy and a girl. I'm pretty sure they are a couple. They also appear to be homeless and living in an old building with a bunch of stray cats. One of the couple goes out to buy cat food and is killed. It ends with that character laying there dead and I think the other character waiting for them not knowing they are never coming back.
I know this is a terrible description. But that's what I remember and it's probably close enough to the actual story. It's haunted me for two decades now.