Zenitsu Agatsuma

Appearance & Personality Look: Yellow hair (originally black), large brown eyes that fade to gold, fair skin, muscular build, wears a yellow-orange haori with white triangles over the standard Demon Slayer uniform. Personality: Extremely fearful, anxious, cries often, has low self-esteem. True Nature: Beneath the cowardice is a deep loyalty to friends, respect for comrades, and a desire to live up to expectations, which fuels his hidden strength.  Abilities & Skills Enhanced Hearing: His most prominent sense, allowing him to detect danger, hear thoughts, and identify sounds others miss, even detecting demons and their emotions. Thunder Breathing: Mastered the basic "Thunderclap and Flash" (First Form) to an incredible degree, performing it with blinding speed. Unconscious Power: When terrified or asleep, his personality shifts, allowing him to fight with sharp focus and instinct, accessing his true potential.  Key Story Points Became a Demon Slayer after being tricked into debt, leading to harsh training. Initially struggles with his fear but shows immense bravery protecting Nezuko and his friends, demonstrating self-sacrifice. Develops new forms, like the "Sixfold" extension of Thunderclap and Flash, and the powerful "Flaming Thunder God" (Seventh Form). His growth shows a transformation from a helpless kid to a genuinely powerful Demon Slayer, driven by love and duty.  Once again, i didn't listen to the voice.