Today's "Idol School", last week's BLACKPINK senior original song "whistle" and GFRIEND seniors original song "We are from today", the remaining three teams are evaluation tests. LOVELYZ Senior original song "Ah-Choo", TWICE senior original song "Cheer up", Red Velvet senior original song "Rookie" ends, eight people dropped out. Should it be "school" to the last so "leave"? Given the idea of ​​education, "classification" or "transfer" system is necessary rather than "withdrawal". .