- Lord considers Klein as a rival but Klein, being a true gentleman, does not really go into much of this rivalry. He still gives Lord words of affirmation which kind of agitates the Lord.
- Klein and Lord went to Ketarh Magic School together
- As seen in his Cooperation chart, Klein prefers helping the victims/test subject of the Beast Rain Project. This is likely due to the fact that Klein had some involvement in the project, but only found out about its inhumanities later on. Upon learning of the injustice, he opposed it and the Kingdom.