Discovery

Yumi heaved a sigh of relief after learning that Ace would come to help them!

In truth, even though this is the capital, she's worried that the preparation by the Grand Sages was not enough to deal with the Space Beasts…

She wasn't underestimating the two since they've dealt with the magicians of Seiji recently, however, the strength of these beasts is on a different level.

They appear to be immune to physical attacks and they also have extremely high resistance against Mana Spells. 

They've noticed that only spells at the level of Grade 5 would actually reach them and deal a bit of damage to their scales or skins.

However, it is obviously not enough to kill them since they could easily regenerate whatever wound they inflicted.

Aside from that, their usage of Grade 5 Spells was costly and they couldn't use them in succession.