I am not sure why people are reviewing this so badly. I actually really enjoyed this manga. I feel like people are kind of comparing this to how people treat disabled people in America and I think you should be going about it through the eyes of living in Japan. Although Japan seems to be trying to do better with disabled people, disabled people don't seem to get the same help and attention that others do. It seems as though they are rather looked down upon a lot more than, let's say, America. You also have to consider that bullying is much higher in Japan and suicide is one of the highest killing rates.
This manga really shows a man trying his best with a disability. You see just how difficult it is to have a relationship and how Japan is different in the way that they kind of look down on having a disability. I think all things considered, this manga shows you a relationship that really goes through different aspects of being wheelchair bound. You might think it's dramatic but do you really think it would be that easy to be in a relationship with someone who is paralyzed from the waist down? Do you not think that it would be strenuous at times? Or something might happen? Things happen all the time in normal relationships and I think it would be a bit silly to think it wouldn't with a person who is in a wheelchair for the rest of his life. And considering how a lot of romance manga usually has a lot of drama, this one actually seems to be more interesting than that.
I really enjoyed it and liked the character plots, relationships and how it turned out.