According to wiki Asuna is supposedly like Negi's aunt...
Hmm, a new card? Well looks like the pactio cards can differ afterall. But, I thought your pactio abilities are your latent ability and shouldn't differ, and this can be seen from Albeirro's cards, where they all look the same. Looks like it probably has to do with the feelings towards that person?
Next chapter we might see Negi go all berserk on this governor-general guy, he seems pretty pissed.