Tenmonbu no Jijou
- Tenmonbu no Jijou (天文部の事情; Circumstances of the Astronomy Department)
- Akimoto Yasushi
- Other Information
- Arrangement: Wakatabe Makoto
- Kenkyuusei: Abe Kyoka, Ito Raira, Inoue Yuriya, Iwahana Shino, Ui Mashiro, Ueno Haruka, Kusaba Manami, Kojina Yui, Tomiyoshi Asuka, Fukagawa Maiko
There are currently two versions of "Tenmonbu no Jijou" to be found in HKT48's discography. These versions are:
- Tenmonbu no Jijou (Original)
- Found on the Theater edition of the "Melon Juice" single as track #3.
- Tenmonbu no Jijou (Instrumental)
- Found on the Theater edition of the "Melon Juice" single as track #6. This is the standard version without the main vocals.
- STUDIO48: "Tenmonbu no Jijou" lyrics