Jungle wa Itsumo Hare nochi Guu, Majin Tantei Nougami Neuro Recommendations
Hare and Guu, aswell as Majin Tantei Nogami Neuro both feature a torment, inhuman character attatching themselves to an unfortunate youngster.
The unfortunate youngster has no choice but to put up with their new 'friend' and is fully aware of this individuals vast range of supernatural abilities.
Both supernatural characters litterally have more then one face and can portary a cute 'I'm just an innocent tag along' exteriour towards others.
Both regular characters are fairly balanced individuals; they're not sickly sweet, they're not too quiet and they're not push-overs either.
Both have a good balance of; plot foundation, odd humor and character development.