Koi wa Sainan
- Koi wa Sainan (恋は災難; Love is a Disaster)
- Akimoto Yasushi
- Tokunaga Takehiko
- Other Information
- Arrangement: Wakatabe Makoto
Artist: Team M
- (Center: Shiroma Miru)
- NMB48 Team M: Ishida Yuumi, Iso Kanae, Uno Mizuki, Odan Mai, Kato Yuuka, Kamieda Emika, Kawakami Chihiro, Kawakami Rena, Kinoshita Momoka, Nakano Reina, Nishizawa Rurina, Yasuda Momone, Yoshida Akari
- NMB48 Team M / AKB48 Team A: Shiroma Miru
- NMB48 Team M / AKB48 Team 4: Shibuya Nagisa
There are currently two recorded versions of "Koi wa Sainan" found in NMB48's discography. These versions are:
- Koi wa Sainan (Original)
- Found on the Type-B edition of the "Boku Igai no Dareka" single as track #3.
- Koi wa Sainan (off vocal ver.)
- Found on the Type-B edition of the "Boku Igai no Dareka" single as track #6. This is the standard version without the main vocals.