Lilia refers to Ortho as a “school friend” (Ortho calls Lilia a “friend” in response), and he also talks about school friends during the Playfulland event.
Lilia refers to the Tamashna Muina group of Leona, Kalim, the prefect, Grim and Vil as his friends.
According to Silver Lilia is “old friend’s with Sebek’s grandfather,” but Lilia has maybe never said so himself.
Lilia will use the word “friend” in reference to his online friends and Gloomurai, specifically, and with Stitch (though he was teasing Ace at the time).
Lilia and Idia will also refer to one another as “war buddies,” though neither knows that they are referring to each other.
He mentions how wonderful it is to spend time with family and friends on one’s birthday.
Lilia is uses the word 親友 (best friend) in reference to Raverne, which is rarely used amongst the NRC cast.
Note: This compilation is based on the original game and not the English-language adaptation, where the word “friend” will sometimes be added to or removed from character dialogue.
Lilia’s final goodbye at the end of Book 7-35, for example, where he declares “Farewell, my friends,” didn’t actually happen. His actual dialogue was “Everyone, farewell.”
Twisted Wonderland Reference Note 