This form represents Thunder which, with lightning, evokes fear but reminds us that danger, like a thunderstorm, passes as quickly as it comes, leaving blue sky, sunshine and rain-freshened air behind it. The practice of this form should help the student act calmly to threats of danger. When performing forms, you should not think of executing techniques in a vacuum, but rather responding to attacks from a number of opponents surrounding you.

1. Move left foot to "B" (back stance) with left knife hand block.
2. Move right foot to "B" (Apkoobi) with right spear hand.
3. Move right foot to "C" (back stance) with right knife hand block.
4. Move left foot to "C" (Apkoobi) with left spear hand.
5. Move left foot to "H" (Apseogi) with left knife hand high block and right knife hand strike at neck level.
6. Right foot front kick to "H" (Apseogi) with left reverse punch.
7. Left foot side kick to "H".
8. Right foot side kick (back stance) with right knife hand block.
9. Move left foot 270° to "G" (back stance) with left outside block.
10. Right foot front kick to "G" (Apkoobi), step back with right foot into left back stance with right inside block.
11. Move right foot to "F" (back stance) with right outside block.
12. Left foot front kick to "F" (back stance) step back with left foot into right back stance with left inside block.
13. Move left foot to "A" (Apkoobi) with left knife hand high block and right knife hand strike to neck level.
14. Right foot front kick to "A" (Apkoobi) with right back fist.
15. Move left foot to "E" (Apseogi) with left inside block and right reverse punch.
16. Move right foot to "D" (Apseogi) with right inside block and left reverse punch.
17. Move left foot to "A" (Apkoobi) with left inside block and double punch.
18. Move right foot to "A" (Apkoobi) with right inside block and double punch (with KiHarp).

Front F________H________G D________|________E B________|________C A