Guess a group based on one YT comment of their fan (CaraFIMIE's Ver #1)

Too hard. No one can guess these. Need more clues...

I'm super curious about the first one... She's a 2005 born idol? 5th gen group?

Quote from CaraFIMIE

Yes

Haneul from KOL?

If not, is she from a big company or mid-tier company?

The last one must be someone that's somewhat popular... From 2nd, 3rd or 4th gen? Is he from a popular group?

Quote from CaraFIMIE

Think of a more recent debut.

Which company? Youngseo?

Quote from CaraFIMIE

Yes!!

I would not have chosen her if it wasn't for the clues! She did many hard work in many fields... What other fields? Thought she was already a trainee since she was very young...