At first, Liliana saw Godou as nothing more than another Campione who desire nothing but conquest. However, after she allied with them during the battle with the Campione Voban, Liliana pledged herself to being Godou's knight and first advisor and has attempted to do honor to that position. However, as time has passed, Liliana has found herself falling in love with Godou, a feeling that Godou seems to be reciprocating. In volume 18 chapter 10, it is revealed that they are both aware of their feelings for each other, but under the pretext of lord and knight, although they are dating like lovers. By the end of series, their relationship has gotten so intimate that they have sex after Godou returned from his parallel world travels and even desired his child.
Liliana and Erica are old friends and rivals from two different orders of knighthood, the Bronze-Black Cross and the Copper-Black Cross, and they are the only members who can stand toe to toe with each other in skill. However, they are otherwise complete opposites. Liliana is a Witch who is very conscious of duty and formalities, while Erica is a Hermetic mage who is much more relaxed about them, though both have a very strong sense of honor. The relationship between these two get closer since become godou's woman, they more often work together to support Their king and man Kusanagi Godou. By the end of series they work together in shanghai making assosiasion under Godou command and join force with assosiasion under queen of material art. They even became comfortable enough with one another that both of them were willing to have sex with Godou at the same time.
Liliana and Yuri did not start out well in the beginning, due to at the time serving under Voban's who attempted to summon a Heretic God by killing Yuri. After having a change of heart and allied herself with Godou, Liliana tried to befriend Yuri, but the situation was awkward for a long time until their next upcoming battle where the two put aside their differences and started to get along.
While she did not accept Ena as a friend at the moment in Volume 5, Liliana, however, only accept her as a harem member because Godou should not turn away woman coldly and treat her the same as the rest. Over time, while Liliana see Ena as a brute and too carefree, she does, however, see her as a friend among them.
Just as she see's most humans, Athena viewed Liliana as a lower existence. Upon the discovery of Liliana's sixth sense however, she considered Liliana a threat to her plans for Godou.
Karen is Liliana's maid, as well as her apprentice in witchcraft. Karen likes to team up with Erica to poke fun at Liliana, by providing Erica with information that Liliana would find embarrassing.