I guess just being wielded in battle isn't really the best way of learning.

[Souji laughs. Of course, he hasn't been wielded in battle yet and doesn't actually know what it's like, but the thought is still extraordinarily silly to him.]

Ahh, but what kind of teacher is Yamato-kun?

[Look, he wants to hear more about his new friend! He made a friend all on his own within the first hours of existence that he actually remembers, that is really exciting to him.]