IF

Height: 150 cm
Weight: 39 kg
BWH: 74-55-77

Along with Neptune and Compa, she is one of the group which adventure down to around the earth but in the same time, she is the only character among the protagonist group whom have senses and often lecture both Compa and Neptune as in case as they went into some trouble.

IF is a headstrong girl who acts completely serious and only wishes to focus on important task to finish them first and above all else. She really hates doing useless or unecessary things if they do not help or achieve anything to her or the group.
Despite her serious nature, she has a very sarcastic humor, but she comes off as a relaxed person until pushed enough to grow annoyed.

(Source: Wikia)