I'm in puberty

Character introduction

송형준

Song Hyung-jun/17/Not in middle school/Family with Park Woo-jin and Park Ji-hoon/Friends with Son Dong-pyo/Have circumstances

박우진

Park Woo-jin/19/Charisma/Park Ji-hoon, Song Hyeong-jun and family/Park Ji-hoon and twins

박지훈

Park Ji-hoon/19/Mam Yeo-rim/Song Hyeong-jun, Park Woo-jin and family/Park Woo-jin and twins

손동표

Son Dong-pyo/17/Hyung-jun's only friend