- Kodoku Guitar (孤独ギター; Lonely Guitar)
- Akimoto Yasushi
- Yamamoto Sayaka
- Other Information
- Arrangement: Nonaka "Masa" Yuichi
Artist: Team N
- NMB48 Team N: Azuma Yuki, Ichikawa Miori, Kusaka Konomi, Koga Narumi, Jonishi Kei, Suto Ririka, Tanigawa Airi, Naiki Kokoro, Hayashi Momoka, Hori Shion, Matsumura Megumi, Mita Mao, Yabushita Shu, Yamao Rina, Yamamoto Ayaka, Yamamoto Sayaka
There are currently two recorded versions of "Kodoku Guitar" found in NMB48's discography. These versions are:
- Kodoku Guitar (Original)
- Found on the Type-A edition of the "Boku Igai no Dareka" single as track #3.
- Kodoku Guitar (off vocal ver.)
- Found on the Type-A edition of the "Boku Igai no Dareka" single as track #6. This is the standard version without the main vocals.