- Warukii (わるきー; "Warui Milky" / Bad Milky)
- Akimoto Yasushi
- Ogawa Kota
- Other Information
- Arrangement: Nonaka "Masa" Yuichi
There are currently two versions of "Warukii" to be found in NMB48's discography. These versions are:
- Warukii (Original)
- Found the Theater edition of the "Nagiichi" single as track #4 and the Type-M edition of the Teppen Tottande! album as track #11.
- Warukii off vocal ver.
- Found the Theater edition of the "Nagiichi" single as track #8. This is the standard version without the main vocals.
- STUDIO48: "Warukii" lyrics