Ie Naki Ko
English title: Nobody's Boy Remi
Japanese title: 家なき子
Alternative titles: Rémi the Nobody's Boy, Remi and his Adventures
Type: TV
Source: Novel
Episodes: 51
Status: Finished Airing
Aired: Oct 2, 1977 to Oct 1, 1978
Broadcast: Unknown
Duration: 24 min per ep
Rating: G - All Ages
Studios: Madhouse, TMS Entertainment
Licensors: AnimEigo, ImaginAsian Entertainment
Genres: Adventure, Drama
Themes: Historical
Demographics: Kids

Remi is a boy living happily with his mother in the French countryside. But everything changes when his estranged father comes home and, in desperate need of money, reveals that Remi is adopted, and sells him. Heartbroken, Remi ends up with Vitalis, a traveling musician, and his troupe of animal entertainers. Together, they travel the country in search for Remi's real parents, along the way learning the harsh lessons of life. A deeply moving story about friendship, loss and the pursuit of happiness. 

(Source: AniDB)