On April 14th, Bang Si Hyuk shared a photo on his personal social media account with the caption, “Great performance & Thank you for the surprise! @txt_bighit #act_promise_ep2_in_Kagawa #bighit #HYBE.”

In the photo, Bang stands next to the TXT members, who are dressed in stage outfits, while he appears in comfortable casual attire. What stood out most was his significantly slimmed-down figure—especially his waistline, described by fans as “barely a handful.” 

The transformation was striking enough to spark comments about whether it was Photoshopped, but his natural posture and the unedited look of the image confirmed the change is real.

Online users reacted with amazement, commenting, “That’s an idol-level body now,” “What’s the secret behind the HYBE diet?” and “He blends in perfectly with TXT now.”

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