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id be inclined to say Kanta Suzuki starts at 0:08

the smoke changes too drastically to be entirely the same artist

character movement is also a fair bit different but not as much of an factor here
oh looking again, the first part is definitely Sunghoo Park

the heavy BL smears w the blur is something he did a lot and still does
Park from beginning to 0:18 maybe? The smoke at 0:14 has his style and the beginning parts have his smears.