Tylene knew what the consequences of being associated with a demon was. According to rumors, she might even have to offer her own soul or life as the sacrifice. In less serious cases, she might have to enslave herself to the demon for the rest of her life.
Perhaps Joshua might be completely different from the rumored demons. But, right now, all the members of the Black Swan Theatrical Troupe were bearing witness to Tylene choice.
If Tylene accepted Joshua's invitation, the Holy Church will become her enemy. In a world composed mostly of humans, that was not a sensible choice.
But, Tylene did not show any hesitation this time. Even though her Blackwood Elf friend was completely against it, Tylene had already made her mind. Of course, her answer would be, 'I'll go with Teacher Joshua.'