Fishing Equipment Store

What is the secret to catch kingfish in Harvest Moon DS Cute for girls? (English version)?

I've heard of fish King, and I know that can get caught in the hot springs near the pond goddess of grain, but I tried to catch him and I can not! Does anyone know any advice?

Here is a list of the Fish King in the game (scroll to the bottom of the page, there are 6 of them). That is http://www.fogu.com/hm6/chan5/fishlist.php?p = in the hot springs can only be captured in the winter.

King Fishing from Kure Beach pier