Figure 17 Tsubasa & Hikaru (フィギュア17つばさ＆ヒカル, Figure 17 Tsubasa & Hikaru?) is an original anime series written by Genco Olm that was later adapted into a manga by Guy Nakahira.

The original anime which aired on TV Tokyo is published in English by AnimeWorks. This anime is unusual in that the episodes are a good deal longer than most standard TV anime broadcast episodes, at 45min per episode. Each half episode is approximately the length of one standard TV anime episode. The series is published on six volumes of DVDs in North America and one compiled collection of all 6 discs together.

Later, the manga was created and published in the Japanese magazine Dengeki Daioh. The manga was also licensed and is now published in English by ADV Manga.

Source: Wikipedia