Single assist hook using Spear hook (SH - 20). Since it uses the assist line with the moderately strong Kosi, it has less hugs to the jig at the time of jerk and also features less power loss at hooking. It is hooked quickly with a sharp hook point, and it is not very easy to hurt even after hooking. It is very effective in situations where you want to maximize the original movement of the jig and want to jerk quickly and tricky.