100 Days of Love: Kim Seong-soo Reveals Weight Loss Secrets and Jawline Transformation
Daniel Kim Views
[JoyNews24 Reporter Lee Ji-young] Actor Kim Seong-su showed off a noticeably sharper jawline.
On April 2, Channel A’s ‘Groom School 2’ aired an episode that followed Kim Seong-su and Park So-yoon as they celebrated their 100-day anniversary with a date.
Kim Seong-su appeared visibly slimmer in the face that day. Tak Jae-hoon noted, “You look like you’ve lost more weight.” Kim replied, “A little more.”
![Groom School [Photo=Channel A]](https://contents-cdn.viewus.co.kr/image/2026/04/CP-2023-0079/image-69a4c226-caca-492a-88a8-315f9dff4801.jpeg)
Lee Seung-chul remarked, “They say love changes people. Don’t you end up checking the mirror more often?” Kim answered, “I check it five times.”
Jin Yi-han also complimented his defined jawline. Kim Seong-su turned to show his profile and proudly flaunted it. Tak Jae-hoon quipped, “To me, it looks like it says ‘Ulthera.'”
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