Raphtalia felt that something was off.
And then, while Rapthalia was in the middle of thinking.
She felt that both Itsuki’s attack power and the number of his attacks were very small.
Raphtalia learnt Itsuki’s level earlier. Since 75 was quite high, Raphtalia decided to trust him.
Compared to Motoyasu and Ren, that attack power was too low.