Kickflip Donghyun’s innocent, sweet image fits the description perfectly.

When Kickflip Donghyun was mentioned for having a gentle vibe, I think it means that his personality or facial expressions give off a soft image haha.
The fun part about these nicknames is that you can immediately picture the character even with just a single word.

If you are energetic on stage and have a gentle image offstage, that gap is also charming.
From the fans' perspective, this type feels more approachable!