There was no doubt that among Minato Namikaze, Hatake Kakashi, Uchiha Obito, and Rin, the one closest to Uchiha Yue was Uchiha Obito, who had been friends with him since childhood. Unfortunately, Uchiha Yue's strength had grown too quickly, leaving Uchiha Obito unable to keep up with him.
However, from Uchiha Obito's current progress, Uchiha Yue could see that Obito had been striving to catch up to him all along. In particular, when Uchiha Obito fought those Amegakure ninja, Uchiha Yue saw just how much he had improved. Compared to Hatake Kakashi, whose strength had declined, Uchiha Yue felt that Uchiha Obito had improved the fastest out of Minato Namikaze's group of four!
At this stage, Minato Namikaze's growth had reached a bottleneck—the bottleneck between quasi-Kage and Kage level. During their fight, Uchiha Yue had already thoroughly grasped Minato Namikaze's strength and his limitations. Therefore, Uchiha Yue felt that Minato Namikaze should learn more new secret techniques instead of confining himself to the Flying Thunder God Technique and the Rasengan series of ninjutsu. Otherwise, Minato Namikaze might remain at the quasi-Kage level for a long time, unable to break through to become a true Kage-level expert.
For a long time now, Minato Namikaze's strength had remained at its current level, ever since he fought the ninja of Sunagakure. Even after fighting Uchiha Yue, Minato Namikaze had not recognized the flaw in his path. Perhaps specializing in a single series of ninjutsu was Minato Namikaze's preferred method of training. But if he remained forever fixated on those few techniques, it would be extremely difficult for him to improve. That was also the reason Minato Namikaze's strength had stagnated.
As for Hatake Kakashi, he was the one Uchiha Yue found most disappointing.
In order to surpass Uchiha Yue, Hatake Kakashi had devoted