At the Foundation, Kakashi meets a boy who uses Wood Style, a jutsu that only First Hokage Hashirama was capable of using. Kakashi goes to Third Hokage Hiruzen’s library to seek answers and discovers records regarding Hashirama’s cells.
If Lord Hashirama's cells had
really been implanted into infants…
...إن زُرعت خلايا هاشيراما-ساما حقًّا بداخل الأطفال
Se as células de Hashirama foram 
mesmo implantadas em bebês...
Если клетки лорда Хасирамы
и правда пересаживают детям...