Guess the name of an idol group by looking at the initial consonants only

5-1) Correct answer🌈

1. ㅅㅌㄹㅇ ㅋㅈ
Correct answer: Stray Kids

2. ㅇㅇㅇㅍ
Correct answer: On and Off

3. Tmrlrbttgd
Correct answer: Tomorrow X Together

4. ㅇㅇㅂㅅㅅ
Correct answer: AB6IX