Age: 16 years old
Height: 160 cm

Erio is Makoto's first cousin. One day, she mysteriously disappeared for six months, with no memory of what happened during that time. At the same time, she began having an extreme fascination with aliens, believing herself to be an alien investigator monitoring humans.

Following an incident where she broke her leg whilst trying to fly on her bike, she constantly wraps herself inside a futon.
(Source: Wikipedia)