You failed one subject. And you have to take a follow-up exam in order. To help you sensei tell someone to teach you.

Who's that?

Capricorn : Akaashi Keiji

Aquarius : Yaku Morisuke

Pisces : Tsukishima Kei

Aries : Kuroo Tetsurou

Taurus : Sawamura Daichi

Gemini : Shirabu Kenjiro

Cancer : Ennoshita Chikara

Leo : Sugawara Koushi

Virgo : Oikawa Tooru

Libra : Yamaguchi Tadashi

Scorpio : Iwaizumi Hajime

Sagitarius : Kita Shinsuke