The shadows in New Grenton

It was taking quite long for Ren's group to reach New Grenton, as they were leisurely traveling. All throughout the journey Tsukiyomi kept on telling them that they should use [Air Walk] so that they could have a faster journey. Yet both Ren and Lara who could already use this technique didn't want to use it. On the other hand, Valdel had no knowledge of the technique.

Tsukiyomi was confused since based on the talent she has seen from Vadlel it wouldn't be that hard to teach him how to do it. So then why were they continuing to walk like normal people? She couldn't help herself as she asked Ren why they continue to walk like this, to which he answered.