Eh, it’s cute enough. This is pretty much just a filler OVA, so I’d only recommend it if you REALLY love Full Moon wo sagashite and want a little snippet of extra content (based on the story, I’d assume this is set within the first 10 episodes or so). I don’t exactly get why they couldn’t transform into their normal Shinigami forms and fly there (subsequently avoiding the dog and bird mishaps), but this little adventure is otherwise alright. Plus, I have to give it props for not being particularly fan-servicey like most OVAs of the same nature. Overall, I’d give this a 6.5 (rounded to 7)/10.Definitely not necessary, but a decent watch if you like the main series.