| PSI-missing | |
| Cover: | Psi-missing.jpg |
| Type: | single |
| Artist: | Mami Kawada |
| Album: | Linkage |
| B-Side: | Ame |
| Released: | October 29, 2008 |
| Genre: | J-pop |
| Length: | 18:02 |
| Label: | Geneon |
| Producer: | I've Sound |
| Prev Title: | Joint |
| Prev Year: | 2007 |
| Next Title: | Masterpiece |
| Next Year: | 2009 |
"PSI-missing" is the sixth single released by the J-pop singer, Mami Kawada. This single was released on October 29, 2008, one year after the release of her fifth single, "Joint". The song was used as the first opening theme for the anime series A Certain Magical Index.
The B-side was used as an insert song on the twelfth episode of A Certain Magical Index.
The single came in a limited CD+DVD edition (GNCV-0009) and a regular CD edition (GNCV-0010). The DVD contains the promotional video for "PSI-missing".
Composition: Tomoyuki Nakazawa
Arrangement: Tomoyuki Nakazawa, Takeshi Ozaki
Lyrics: Mami Kawada
Composition: Tomoyuki Nakazawa
Arrangement by: Tomoyuki Nakazawa, Takeshi Ozaki[1]
Lyrics: Mami Kawada
It peak ranked 14th on the weekly Oricon albums chart and remained on the chart for fourteen weeks.