Seems that Cheondung had another photoshoot today, this time going on location at a gym, as photographed by the original poster on Instagram. Seems that OP had been exercising at Halo gym (or was going to exercise) when Cheondung had the photoshoot. He also added in the hashtags #SandaraPark #SandaraParkdongsaeng (younger sibling) and #Cheondung.
Thanks to @xandiiee on Twitter for sharing. Wow, how many photoshoots is Doongie going to be doing? :O
Original photo source: kerri0729 on Instagram