- Name: Rinrada Inthaisong (รินรดา อินทร์ไธสง)
- Nickname: Piam
- Birthdate: June 4, 2003
- Birthplace: Saraburi, Thailand
- Blood Type: B
- Height: 159cm
- Hobbies: Dancing, rapping
- Bands / Groups:
BNK48 Song Participation
|Kimi wa Melody||Yume e no Route|
|77 no Suteki na Machi e||77 no Suteki na Machi e|
|Touch By Heart||Touch By Heart (Special Ver.)|
|Happy New Year||Happy New Year|
- Yume e no Route (Under)
- 18nin Shimai no Uta (Swap)
- Originally a 1st generation member of BNK48 Trainees as of February 12, 2017, she was promoted to Team BIII on November 16, 2019.
- Her favorite color is white.
- Her favorite food is marshmallows.
-  BNK48: Girls Don't Cry (as herself)
-  One Take (as herself)
-  The Underclass