Im Yoona who just transferred to TS High 1 month ago was always bullied everyday by her fellow schoolmates and also the Kingas of the school for being a 'nerd'.

Im Yoona (Choi Hana):

The 'Nerd' Of TS High

17 years old

Senior

B.A.P

Bang Yongukk:

18 Years old

Senior

Had Feelings for Yoona

Kim Himchan:

18 Years old

Senior

Had Feelings for Yoona

Jung Daehyun:

17 years old

Senior

Dated Yoona

Yoo Youngjae:

17 years old

Dated Yoona

Senior

Moon Jongup:

16 Years old

Junior

Choi Junhong (Zelo):

16 years old

Junior

Block B

Woo Jiho (Zico):

17 Years old

Senior

Park Kyung:

17 years old 

Senior

Kim YuKwon (U-Kwon):

17 years old

Senior

Lee Minhyuk (B-Bomb):

18 Years old

Senior

Ahn Jaehyo:

18 years old

Senior

Dated Yoona

Lee Taeli:

18 years old

Senior

Pyo Jihoon (P.O):

16 Years old

Junior

Girl's Generation

Jung Jessica:

Yoona's Best Friend since birth,

18 years old

Senior

Hwang Tiffany:

Yoona's Best Friend since birth

18 Years old

Senior

Kwon Yuri:

Known Yoona since the age of 5.

18 Years old 

Senior

Lee Soonkyu (Sunny):

Known Yoona since the age of 5.

18 Years old 

Senior

Kim Hyoyeon:

Known Yoona since the age of 5.

18 Years old 

Senior

Choi Sooyoung:

Known Yoona since the age of 5.

17 Years old 

Senior

Seo Joohyun(Seohyun):

Known Yoona since the age of 5.

16 Years old 

Junior

Others

Im Jaebum:

Yoona's Younger brother

16 years old

Junior

Kim Taeyeon:

The Nerd of the school

18 Years old

Senior