Thank you!
I'm also unsure on how to translate these.
In terms of context it's a guy using some kind of ability and attacking. The first two are sequential while the other one is separate.
So, the character doesn't know the word 'owner/オーナー' thus needs someone to explain that it means '所有者'.
I'm unsure on how this page should be translated to give the same situation in english. Should I transliterate it as ōnā then leave a TL note explaining the situation or do something else?