Notice how the title of this is The Kang's Yeesu 😏 it's not just Kant singular, but Kang plural 
Say my username out loud ☠️ I dare u
Comment by Barry McKockiner on The Kang’s Yeesu - Chapter 30
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I don't think it means KangS the 's there is for possession but since the word used was Kang and not any specified name like Kang Jihyung, it means both of the Kangs own a Yeesu. So eitherway, same meaning as what you said just different thoughts,, well kind of.