Stories about Judoka Ki Young-young... Anyone who has competed domestically?

The name Ki Young-young came up among my friends the other day..
Apparently, someone at my friend's company competed against Ki Young-young in high school as a provincial representative...
Ki Young-young is known to us as the epitome of technical judo...
But according to what my friend heard, it wasn't just technique; his strength was insane.
During grip fighting, his power was so immense that once he grabbed you, it was hard to shake him off....
They say before even considering his technical judo, Ki Young-young was a possessor of incredible strength.... A true powerhouse.