Color grade

Allman

선생

Come out one by one

자까

Black (lowest), red (outcast), purple (average), white (slightly better), sky (highest), rainbow (??)

선생

Seungcheol

승철

yes

선생

purple

승철

Oh, thank goodness

선생

Jeonghan

정한

yes

선생

gray hair

정한

Ohh ...