Team 10

Team 10 is a group of Konohagakure ninja led by Asuma Sarutobi. The fathers of the three team members Choji Akimichi, Shikamaru Nara, and Ino Yamanaka were also on a team together, and both generations refer to their team using the moniker "Ino-Shika-Cho". During Part II, Asuma is slain in an encounter with members of Akatsuki, and Kakashi Hatake briefly assumes leadership of the team to hunt down those responsible for Asuma's death.

Choji Akimichi

Choji Akimichi is a member of Team 10 who is typified by his deep love for food to the extent that he always has a snack with him during the series. Though his habit of always eating gives him a relatively large appearance, Choji insists he is not fat, instead using explanations like being "big-boned". If someone refers to him as fat, Choji instantly becomes hostile and increases his resolve to battle. Shikamaru Nara has never found an issue with Choji's weight, instead choosing to look upon Choji's inner strength. Because of this, Choji regards him as his best friend, stating he would willingly give his life to defend Shikamaru. In battle, Choji can increase the size of his body to improve the amount of damage his strikes deal upon impact

Shikamaru Nara

Shikamaru Nara is one of the members of Team 10. Due to his easygoing nature despite being a genius, and contrasted him against Sasuke Uchiha's intelligent but abrasive personality. Shikamaru's intelligence is such that Asuma Sarutobi, Team 10's leader, has never been able to defeat Shikamaru at games such as shogi or go, and he can devise complex strategies even in the heat of battle. However, his laziness frequently prevents him from effectively utilizing his intelligence. Shikamaru is a longtime friend of Choji Akimichi, his fellow Team 10 member, as he chooses to look upon Choji as a person rather than only considering his large girth. In battle, Shikamaru can manipulate his shadow, and by extending it into another person's shadow he can force the target to mimic his movements.

Ino Yamanaka

Ino Yamanaka is the only female member of Team 10. She has known Sakura Haruno since they were children, befriending and helping her to develop her own identity. When they discovered that they both liked Sasuke Uchiha, Sakura ended their friendship so they could properly compete for his affection. The two eventually make amends and rekindle their friendship, but still maintain a competitive attitude towards each other. In the anime, when Sakura begins to excel in healing techniques, Ino becomes her surrogate apprentice, hoping to be more useful to her friends and teammates as an able medical ninja.  In terms of combat abilities, Ino specializes in mind-altering techniques. To use these techniques, Ino transfers her consciousness to her target's mind, gaining control over their body which she can then use to attack others. 

Asuma Sarutobi

Asuma Sarutobi is the leader of Team 10 and son of Hiruzen Sarutobi. He had a falling out with his father when he was younger, and briefly left Konohagakure in protest. The two had not completely reconciled by the time of the Hiruzen's death. Asuma is usually seen smoking a cigarette, but will temporarily drop the habit when something is bothering him, such as when his father died. Among all his students, Asuma shares a particularly close relationship with Shikamaru Nara, and the two often play shogi or go together. Asuma frequently appears alongside Kurenai Yuhi, leading many characters to assume the two are a couple. Both deny this and promptly try to change the subject whenever it is brought up. During Part II of the series, however, Kurenai is revealed to be pregnant with Asuma's child, making their relationship clear. In battle, Asuma wields unique brass knuckles equipped with blades that can be infused with chakra. When infused with his wind-based chakra, Asuma can extend the blades' length and easily pierce through rock. After Asuma is killed by Hidan, a member of the criminal organization Akatsuki, these knuckles fall into Shikamaru's possession, and he uses them to defeat Hidan and avenge Asuma.