Triplet (トリプレット) was a SATOYAMA & SATOUMI movement unit formed on March 13, 2014 alongside ODATOMO and Sato no Akari.
- [2014.04.23] Aa, Subarashiki Hibi yo / Dream Last Train / Kodachi wo Nukeru Kaze no You ni - with Sato no Akari and ODATOMO
- All members have blood type A.
- Kudo Haruka is the only member in this unit to not have dyed hair.
- This is the first unit to feature Kudo Haruka and Takagi Sayuki since joining Morning Musume and Juice=Juice.
- Okai Chisato is the only member in this unit to have not been part of Hello Pro Egg.
- Unlike previous SATOYAMA & SATOUMI movement units, Sato no Akari, Triplet, and ODATOMO's profiles were never added to the official website, and their music videos were never officially uploaded to YouTube.
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