Kotarou Fuuma

This character is Sasuke's childhood companion, driven by a desire for vengeance stemming from a near-fatal encounter with Sasuke. A crucial plot point involves Kotarou being manipulated by Indara, leading him to attack Sasuke, though Sasuke was defending himself. Possessing the unique ability to command shadow forces, he wields the devastating Kageochi attack. After a confrontation revealed the true motives, they forged a bond of friendship, and he ultimately sacrificed himself to protect Sasuke from further harm.