Kun Kun Trace-Kun

Kun Kun Trace-Kun or Trace Neo is one of Lala's inventions.

Features
This invention looks like a dog that detects certain persons by smelling the targets. It can speak and adds "Dasu" in conversation. After that, Kun Kun Trace-Kun Kai appears and adds "Wan" (Woof).

In appearance, a white robot dog with Deviluke's symbol on its back near the tail, and a red nose. But its second version, Kai, has a blue nose instead of the first version.

It is mostly used to search for Rito by Lala in the series.

Appearance
In chapter 7 of To LOVE-Ru (and episode 6 of the first anime), it is used by Lala to search for Rito with its sense of smell, guided by Rito's inner clothes. And they find Rito searching for Haruna, who is cornered by Ghi Bree.

In chapter 102 (and OVA 1 of first anime), it is used for trailing Riko, whom is in Saki's residence.

In the chapter 146, the second version "Kai" is used for trailing Rito who is with Haruna (both naked) in a dark room of Mikado's Clinic (teleported by Lala's invention Pyon-Pyon Warp-Kun). The anime adaptation in episode 2 of Motto To LOVE-Ru add an extra scene where it attaches Yui's thigh and attempts to strip Yui's panties.

In the OVA 3 of Darkness, it is seen as the renovated version "Kai" with a blue nose, is found along with other inventions. However, they all seem to be turned off.

Trivia

 * Kun Kun means "to sniff" in Japanese.
 * This invention is voiced by Tomoyuki Higuchi in Japanese and George Peter in English.
 * It is one of the inventions that has changed its appearance at least once in the anime.