1. Orochimaru: Orochimaru uses the "Reanimation Jutsu" and is immortal. He is a key rival for Naruto and Sasuke. Orochimaru's strength grows over time, making him a formidable opponent for the main characters.

2. Hanabi: Hanabi is Hinata's sister and the heir of the Hyuga Clan. She possesses unique white eyes, which caught the attention of Toneri Otsutsuki. Hanabi's eyes are used to activate the powerful Tenseigan. She has the potential to use the Reanimation Jutsu in the future.

3. Mitsuki: Mitsuki is Orochimaru's son.

He can use the Sage Mode, desired by Orochimaru, even as a lower-level ninja. Mitsuki's abilities make the Otsutsuki Clan uneasy, and he may surpass Boruto in strength. He will be a pillar for Konohagakure in the future.

4. Boruto: Boruto, Naruto's son, has many powers, including the Jougan, a dojutsu. He also has a seal obtained from defeating Momoshiki Otsutsuki. This seal's abilities are unknown but will undoubtedly aid Boruto. As the protagonist of "Boruto," his strength is undeniable.

5. Kabuto: Kabuto is Orochimaru's assistant and possesses all of his abilities, including the desired Sage Mode.

Kabuto's strength surpasses Orochimaru's after activating the Sage Mode. He has turned over a new leaf but will offer help if the ninja world is in danger.