Fifth Form: Heat Lightning

The Fifth Form of Thunder Breathing", known as "Heat Lightning", is a forceful technique that manifests as a powerful upward sword slash accompanied by a bolt of lightning. This versatile move is capable of cleaving through most targets with ease, demonstrating its destructive potential. Kaigaku's mastery of Thunder Breathing allows him to convert most of his attacks into ranged strikes, posing a significant threat to his opponents.

The sheer speed and intensity of "Heat Lightning" make it challenging to block or evade, requiring exceptional reflexes for any chance of defense. Even then, avoiding damage entirely remains a formidable task. Kaigaku's proficiency with this technique exemplifies the potency of Thunder Breathing, emphasizing the formidable nature of those who wield such Breathing Techniques, making them forces to be reckoned with in combat.