for my biggest fan #RIIZE #라이즈

In the Korean comments

Several comments call Sungchan and Sohee 밤똘즈 (Bamddolz, the duo nickname used here). One comment makes the pairing explicit by writing, “밤똘즈” (Bamddolz), followed by both members’ full names.

What the words mean

“영화계가 이 영상을 보게 해선 안돼” (literally, “We must not let the film industry see this video”) follows a compliment about their acting. It is playful exaggeration: the commenter pretends their acting is so good that the film world must be kept from discovering them.