Zhang Heng and Okita General Secretary both looked like they were seriously injured. Fortunately, their injuries were not life-threatening. After a proper three-day bed rest, he could move around freely again. Two weeks later, his physical and mental state fully recovered. That one battle against Kirino Toshiaki actually brought him more gain than challenging all those dojos. During that time, he gave it all he got to absorb what he learned so far.
Kirino Toshiaki was like a mini-boss in the gaming context that gave out a lot of experience points. Encountering someone like him in the Bakumatsu era was rare. Then, there was another as good as Kirino Toshiaki waiting to challenge Zhang Heng.