Yoruichi's strength had been steadily improving, not only because Yinsen had pointed out a training path that suited her perfectly, but also because she had Yinsen and Kisuke Urahara, two excellent sparring partners.
Kisuke Urahara had continuously refined and improved this secret base. It no longer looked like a barren place containing nothing but rocks and hot springs. Aside from a small clearing near the hot spring area, most of it was now covered in soft soil and lush green grass.
There was even a small forest in one area. Unfortunately, Yinsen's suggestion to build a pavilion had been rejected—given the commotion the three of them made while training, any pavilion they built would be wrecked within a day.
The improved environment was only secondary. What mattered was that the healing hot spring had been completed. The three of them could now spar without holding back, and this kind of training, infinitely close to real combat, was far more effective than restrained matches.
Going all out with his own strength had also slightly accelerated the growth of Yinsen's Reiatsu.
When Yinsen had first arrived in Soul Society, he had merely possessed the potential to become a Shinigami. The intensity of his Reiatsu would not have stood out at all among the new students of the Shinigami Academy.
Even by graduation, his Reiatsu had only been considered fairly good. There was still a certain gap between him and "geniuses" like Yoruichi and Kisuke Urahara.
Part of the reason Yoruichi had been upset about losing to Yinsen back then was because of that.
But after several years of diligent training, Yinsen's Reiatsu had caught up with Yoruichi's. Such a rate of improvement could only be called astonishing, and Yoruichi was often amazed by how quickly he strengthened his Reiatsu.
In truth, when