Which trainee showed the potential that even Lee HONG-KI of ”FTISLAND” recognized? ... ”I can see his passion and dedication” (School)

The first elimination will occur in the boy group survival show "School." The show will be broadcast on SBS M and SBS
In FiL's "SCOOL," a K-POP history mission begins with a full-scale team battle.
Under the cruel rule that "if a team loses, all members will be eliminated," the trainees fought fiercely to avoid being eliminated.
The trainees will be divided into six teams and will perform on stage, covering songs from 1st, 2nd and 3rd generation K-pop groups to show off their skills and potential for growth.
In this episode, Eun Hyuk, Yuju, Chi
The judges, judges, and judges of the trainees, including Yeonjun, were all enthusiastic and critical, and the results were announced. In particular, an incident occurred that moved the trainees to tears.
Meanwhile, a trainee from "Human Victory" who was also recognized by the members and HONG-KI will be appearing. HONG-KI said, "I could see their passion and sincerity.
He praised their efforts as "members who can grow even more." Who are the protagonists of the growth potential that has made HONG-KI happy?
"School" is a global group created by Korea and Taiwan to create a boy band that represents the world.
It is an audition program that airs every Saturday from 10pm on SBS M and SBS FiL.