2012 | 2 Episodes

Season 0 of Hotaru no Hikari: It's Only A Little Light In My Life premiered on June 9, 2012.

2007 | 10 Episodes

Season 1 of Hotaru no Hikari: It's Only A Little Light In My Life premiered on July 11, 2007.

2010 | 11 Episodes

Season 2 of Hotaru no Hikari: It's Only A Little Light In My Life premiered on July 7, 2010.