- Nana (N/ayeon and S/ana)
- Sanyeon (San/a and Na/yeon)
- They are both vocalists in the group.
- Both can sing and dance.
- Nayeon is Korean while Sana is Japanese.
- Nayeon was born in 1995 while Sana was born in 1996.
- Sana was born in Osaka, Japan, whilst Nayeon is born in Seoul, South Korea.
- They are in the band Twice.
- They both appeared in Park Jin Young 's music video "Fire" along with the other Twice members, except Dahyun.
| To view the SaYeon gallery, click here.