Hittakun-Seijin

An alien from the planet Hittakun who steals by masking face for disguise.

Appearance
He look like an human aside from the head that has point ear, big blue eyes and an antenna. Indeed, he wears an human disguise to mingle with earthlings.

Plot
He appear in chapter 121 of To LOVE-Ru (adpated in the OVA 6 of first anime).

He steal Mikan's bag and Mikan chase him thanks to Peke that turn her clothes in Lala' dress making the girl to fly. Mikan then grabs the thief, but pulls a mask off revealing him to be an alien and he escape with a smoke bomb. After found him, Mikan wears Yami dress claiming to be the Golden Darkness. The thief realizes that Golden Darkness is blonde and try to attack Mikan, but she is saved from Rito. The alien then tries to pull a laser gun out, but is hit by the real Yami. At the end, Zastin will hand over him to galactic police.