I don't know why everyone is getting confused with the art style

I don't know how or why but I can decipher which is which when looking at them... his father (young version) even though he looked so much like tae ha, he just gave off the vibe that he might strangle you to death if you breathe the same air he does ☠ while his brother gave off the vibe that he will scam you millions in a poker alone while tae ha gave off something like you're in a psychiatric ward with him