I really like how this show focuses on friendship. It's not just the trope of "male mc has female friends so they all have to be attracted to him in some way"
I think Yanami is interested in Nuk.. however it's hardly a focus and I really enjoy that. feel Anna was initially going to use Nuk-kun as a rebound but scaled back and wanted to be friends once her relationship with her ex was put into perspective and made her think.