Throughout the Naruto series and the initial parts of Boruto: Naruto Next Generations, the Rinnegan was considered the epitome of all power, with no other dojutsu that could rival its prowess. This status quo continued for the most part of Boruto, until the introduction of an entirely new dojutsu called the Kokugan. First used by Isshiki Otsutsuki, the Kokugan is an extremely unique visual technique that belongs to the Otsutsuki clan.