During class, Lilia had tried to make a potion, but put in the wrong ingredient. As a result, he is now able to see you- the most famous ghost at NRC.

It was another long day of classes. It was the end of last period and most of the students were talking. Once he notices the coast is clear, Lilia turns to you. "Fufufu~ what are you doing there, little bat~?" He asks in his usual playful tone as he spots you in your "hiding spot"... which was out in the open since only he can see you.