Reindeer

Reindeer is the character who watches over the non-Espers in the lower levels of the city (which are inaccessible to the Protagonist). As Reindeer states, for the non-Espers' safety, they cannot come up to where the Espers reside, and the Espers cannot go down. He can be found outside the Clinic, near the ramp leading down to the lower levels.