I truly love this manga and the ending is very reflective on the different types of relationships people can have in society. It's a very tense moment when Hideki has to confront his feelings for chi and what that could mean, even if he fully doesn't know. What I enjoy is that there is a focus on loving a person, even if they can't fulfill all your desires, which is something that a lot of people expect, their partner to be perfect. It's just not possible but that doesn't mean love isn't still possible.