Kibou no Kairyuu
- Kibou no Kairyuu (希望の海流; Ocean Currents of Hope)
- Akimoto Yasushi
- Yamagami Yu
- Other Information
- Arrangement: Nonaka "Masa" Yuichi
Artist: Amakuchi-hime (あまくち姫)
- (Center: Miyawaki Sakura)
- Team H: Ueki Nao, Ota Aika, Shimono Yuki, Miyawaki Sakura, Murashige Anna, Motomura Aoi, Wakatabe Haruka
- Kenkyuusei: Umemoto Izumi, Tashima Meru, Tanaka Yuka, Tomonaga Mio, Yamada Marina
There are currently two versions of "Kibou no Kairyuu" to be found in HKT48's discography. These versions are:
- Kibou no Kairyuu (Original)
- Found on the Type-A edition of the "Melon Juice" single as track #3.
- Kibou no Kairyuu (Instrumental)
- Found on the Type-A edition of the "Melon Juice" single as track #6. This is the standard version without the main vocals.