Into the Ring

Nana

Goo Se-ra

Park Sung-hoon

Seo Gong-myung

Yoo Da-in

Yoon Hee-soo

Han Jun-woo

Kim Min-jae

오동민

Go Dong-chan

Bae Hae-sun

Won So-jung

Ahn Nae-sang

Jo Maeng-deok

신도현

Jang Han-bi

Seo Jin-won

Sim Jang-yang

Ahn Kil-kang

Goo Young-tae

Jang Hye-jin

Kim Sam-sook

Han Dong-kyu

Jang Ha-woon

Kim Mi-soo

Kwon Woo Young [Se Ra's friend]