this is a good example of how to make a comedy anime
Great and lovable characters, simple yet well executed story, comedy bits that feel natural and aren't forced in, great art work, a good cast, though aside from toru and kanna, the other dragons don't feel really unique but still they are fun nonetheless.
the only downside is the final episode which feels kinda rushed and somewhat a cliff hanger to me so i'm hoping for a season 2 if theres going to be one.
overall this is a great pure and light hearted anime if you are a fan of comedies then don't let the summary fools you into thinking this is another by the number comedy and just give this one a go you won't regret it