There was actually one major reason Kushina had left unspoken: Qingxi was lazy. Although she was exceptionally talented, she was also surprisingly lazy. If she could get away with not training, she absolutely would. Whatever strength she had now had been forced out of her by Kushina.
Otherwise, with Qingxi's talent and the excellent environment of the Origin Land, she should already have reached jonin level. The reason she had only reached chunin level ultimately came down to her laziness, along with how thoroughly Minato spoiled her.
Qingxi's laziness had repeatedly been Kushina's greatest headache. She possessed an extraordinary talent for space, even greater than Minato's. Just last month, Minato had explained how Flying Thunder God worked and the principles behind it. To their surprise, Qingxi had figured it out on her own in three days, leaving both Kushina and Minato astonished.
To test just how strong Qingxi's spatial talent was, Minato then taught her Flying Thunder God Second Stage. Who would have thought the results would be even more outrageous? Qingxi learned it in a single afternoon and could freely teleport while carrying objects. They then tested her with Flying Thunder God Third Stage. That took a little longer, but she still mastered it completely in only a week, repeatedly throwing kunai and flashing through the air like a streak of red light. Minato could only marvel at his daughter's extraordinary spatial talent.
Even Naruto had yet to figure out Flying Thunder God Third Stage, and Qingxi had already learned it. Minato could not help marveling at her talent, but over the days that followed, he began questioning his entire life.
To bring out the full potential of the Flying Thunder God Technique, one needed exceptional reflexes and tremendous speed. Neither required talent, only prolonged training, or the use