[@Dawn]
"You too then?" Issei asks rhetorically. The girl before him has also just entered this place. Truly, this was an oddity. It appears that there was a converging factor regarding their displacement.

"I guess I messed up my transfer spell again." 

It would not be the first time that Issei had miscast a spell. Though not the most magical-versed individual, he would at least like to make the somewhat false notion he had passed the point of a "beginner". One might say that Issei had large magical banks to derive his strength from, however, inefficient in regards to the usage of these stored powers. That being said, he sometimes overshoots his magical powers, and presumed that is the reason for his current situation. 

"Are you from Japan as well?" 

Although seemingly cold in regards to conversation, Issei did not feel an exerting pressure of hostility from this girl. Although he had the ability to understand any language to be translated to his own as if his native tongue, names such as "Momiji" and "Tsubasa" would not be translated through this ability. Of course, he still felt her to be a bit apprehensive, maybe coy, therefore felt like such  cleverly disguised smalltalk would be able to increase his own knowledge in regards to his position. 

Although Issei could feel a magical power from this individual,  he could not discern any sort of magical race from her. She appeared, at her core, to be a normal human with a high affinity towards magic. Although this was a rarity in his own time, there was the chance she was also a heroic descendant or was born with a magical based sacred gear. 

"You don't seem like an Angel or a Devil, but you are a student of magic, right? You're pretty cute. Are you the descendant of a Hero or something?"

To reach the level of a magical caster, one must take years of training if they are an ordinary human. Thus, human magical casters tend to be older than mythical race casters, as they must substitute their own lack of ability with knowledge. To be both young and able to cast magic, one must either have been blessed with a strong sacred gear, usually through the descendant of a hero. Issei knew of a strong human caster who was young, A descendant of Le Fay who seemed to have a bit of an affinity towards him. However, this was an uncommon occurrence.