A–B Combo

The, renowned as the , is a sibling team from Kumogakure. It consists of A — the son of the Third Raikage and Killer B — who is recognised as A's brother, after he successfully beheaded a training dummy during a selection process.

Their signature technique, the Double Lariat, is well known and feared greatly outside of Kumogakure. The two brothers spent many years perfecting their technique and even perfected it to the point where A and B could use this technique clad in Lightning Release Armour and the tailed beast cloak respectively to increase the technique's already devastating effects. This team was effectively disbanded after the Third died and A took up office as the Fourth Raikage, confining his brother to the village out of fear of losing him as well.

Missions
At some point in their early history, the duo was tasked with retrieving an unknown scroll. Killer B, much to A's surprise, managed to do so before he was told the purpose of his mission.
 * Recover the Scroll
 * Rank: Unknown
 * Status: Success