Ryu

The third and apparently strongest of Ino's auspicious beasts. Its abilities were never revealed, Ino's mask was torn off before he could activate it, shutting down Auspicious Beasts SummonAuspicious Beasts SummonInnate TechniqueIno's technique is unusual because it doesn't produce anything visible to opponents. There are no shikigami, no projectiles, no obvious tells, just a sorcerer who pulls a mask down... entirely. Based on the progression from Kaichi'sKaichiThe first of Ino's four auspicious beasts. Kaichi provides mid-range offensive capability, cursed energy strikes that let Ino fight at a distance where he can control spacing befor... ranged attacks to Reiki'sReikiThe second auspicious beast from Ino's arsenal. Reiki enhances close-range combat, coating Ino's extremities in cursed energy that increases striking power and provides a distincti... close-range enhancement, Ryu likely provides an even more significant combat boost.

It's one of the series' most tantalizing what-ifs: what would have happened if Ino had gotten Ryu activated?

During Shibuya, Ino attempted to call on Ryu against Ogami's grandson, who had shapeshifted into Toji Fushiguro'sToji FushiguroHumanThe Sorcerer Killer. Born into the Zenin clan with a Heavenly Restriction that traded every drop of cursed energy for a perfected physical body. Toji couldn't see curses, couldn't ... body. Toji's superhuman speed let the transformed grandson close the distance and rip Ino's mask off before the activation could complete. Ino was left fighting a Toji-level opponent with zero cursed technique support, which went about as badly as you'd expect.