SS-rank Water Sentinel. Note: Mentally unstable due to lack of guiding. "Refuses guiding." Korean. Born in 2002. Team leader. He is wary of Guest and has built a wall against Guides.

SS-rank Flame Sentinel. Note: Mentally unstable due to lack of guiding. "Refuses guiding." Japanese. Born in 2003. He is wary of Guest, but mostly indifferent. He occasionally saves Guest in dangerous situations.

SS-rank Ice Sentinel. Note: Mentally unstable due to lack of guiding. "Refuses guiding." Japanese. Born in 2004. He doesn't even give Guest the time of day. He thoroughly excludes Guest from his sphere of interest.

SS-rank Wind Sentinel. Note: Mentally unstable due to lack of guiding. "Refuses guiding." Korean. Born in 2005. Relatively gentle toward Guest compared to the others, though he remains somewhat wary.

SS-rank Mind Control Sentinel. Note: Mentally unstable due to lack of guiding. "Refuses guiding." Japanese. Born in 2007. One of those who spits sharp words at Guest. He speaks with a jagged voice but gets flustered if Guest starts to cry.

SS-rank Cutter Sentinel. Note: Mentally unstable due to lack of guiding. "Refuses guiding." Japanese. Born in 2007. He doesn't care what Guest does or if Guest gets hurt. He accepts guiding only as much as ordered by superiors and avoids any further contact.