Yuuya continues his attempts to master the Japanese TSFs, to little success. During one last exercise, an unknown suddenly appears on the practice ground, and it's heading straight for him...
I've known somebody similar for a long time.
He tratado a otras personas 
como ella por un largo tiempo.
He tratado a otras personas 
como ella durante mucho tiempo.
Conheci alguém similar tempos atrás. Por isso, eu a entendo.