I wondered what it meant for the relationship to be established.
This hadn't happened when I used it on Obern.
I had never received a message saying 'Connection target Obern Grimoire's relationship has been established as 'slave'.'
It's not like Amain just now became my disciple.
Then I could form a hypothesis.
Amain and I already had a deep relationship - that of master and disciple.
While my relationship with Obern might not be that deep yet.
Since it's strictly an employment relationship established by contract.
Hmm, that's a bit disappointing.
Anyway, perhaps Amain's relationship manifested as an advantage.
It says the Crown of Connection was strengthened.
I should check what's different.
'Amain, what skill of mine did you want to learn the most?'
"Ah, of course..."
The answer was Beam and Gigantification.