simkungdan (심쿵단) is a subfandom nickname for engenes who adore Sim Jaeyun. they used to be known as "jakeys," but Jake changed their name to "simkungdan," which means "heartbeat." simkungdans are jake's heartbeat.
simkungdans are as devious and as intelligent as they come. they would go to any length to keep Sim Jaeyun safe.
"don't talk about sim jaeyun unless you're praising him."
"don't talk about sim jaeyun unless you're praising him."
by simkungdan December 11, 2021
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