Suiu

is a genin-level shinobi from Amegakure.

Abilities
Suiu showed skill with Water release, being capable of, in cooperation with his comrades, using the Grudge Rain technique against many foes at once.

Chūnin Exam Arc
In the anime, Suiu was amongst those who failed to get past the first test of the Chūnin Exams. He along with Samidare and thirteen other Amegakure genin followed Team 7 and Team 10 to find out what it is they are after and if possible take it with them back to Amegakure. After failing in their first attempt the Amegakure genin attack using their technique to obtain the legacy of the Fourth Hokage, they are stopped by the intervention of Sasuke Uchiha, who proceeds to attack and defeat them all using Chidori.