* AwesomeMusic: The orchestral background music of the series as a whole can qualify as this.
** Also the ''Feel so Moon'' opening by Unicorn and ''Eureka'', sung by Sukima Switch.
* EarWorm: ''Feel so Moon'' as its best. It's the one that mostly people go and remember because of the phrase and the opening.
* EnsembleDarkhorse: Apo. When you know that the story is about (mostly) the Nanba brothers, and Apo is sort of a mascot for the series as well, this cute pug is mostly the most favorite character of the series, having mostly merchandise dedicated to him.