Excellence

Yumi was curious about what's happening in this mountain. She can sense that there were several powerful sources of energy scattered around this place. 

A while ago, she was unable to sense them as they were still out of the mountain's perimeter but as soon as their car entered, especially when they arrived inside the villa, she can sense the powerful energy coming from somewhere and she believes that it was even being suppressed by several Arrays or Formations. 

'It hasn't been long since my last visit here... Just how efficient is this guy?'

Not only her curiosity was triggered but she was also impressed by the changes that have occurred within this place in such a very short time.

It means that the Wallace here was capable of creating many useful things before the invasion takes place.

'It seems that if he gets serious, he can truly accomplish many works...'