Modorin

Modorin is Run's Modori Skunk which gives out the rejuvenating gas mainly for self-defense.

It looks a skunk whose color of body is blue or violet with black eyes, red nose, yellow crest in its pate, and yellow furs at its back, cheeks and chin.

In the chapter 19 and chapter 21 of To LOVE-ru Darkness, Modorin wears a collar with an octahedral ornament.

This animal seems very shy as every time it moves closer to someone, it gives out gas for self-defense. According to Run, it is very lazy as sleeping around the clock.

Abilities
Rejuvenating Gas: When it wants or it is scared, it gives out the gas rejuvenating ones who are exposed to the gas during temporary period. In some characters, it doesn't affect the age very much such as Rito although others more rejuvenated, as in cases of Risa, Mio and Run. Agility: It is apparently very swift as agile as Lala attempts to capture it.

Plot
It debuts in the chapter 85 of To LOVE-Ru, via Galactic Courier, Run brought Modorin for making Lala younger. But when Run holds Modorin, it ejects the gas making Run younger. After it appears outside the school and makes Lala younger, it arrives inside the school. Haruna finds the animal as very cute and Yui feels it the same but questionably as if someone brought a pet to the school. When Rito suddenly appears, screaming occurs and Modorin in panic to give out the gas to Yui as she is turned into a younger girl. And then the skunk begins to turn everyone younger, as well as Risa, Mio and Honekawa (getting more attractive as young) except Rito, Haruna and Mikado. Later on, it appears sleeping above the tank of the school, and finally captured by Run.

It also appears in the chapter 19 of To LOVE-ru Darkness, walking down the street when it meets with Rito and Yui and he attempts to capture but Modorin is scared and gives out the gas against them and runs away, meanwhile it seemingly turns Momo, Mea, Nana, Yami, Mikan, Haruna, Saki, Rin, Aya and Maron younger as well as the principal. When Rito talks to Run and she reveals that this skunk is called as Modorin. Meanwhile hiding in shrubs, Modorin is found by Rito but it leaps over him while Yui and Rito get in a perverted situation as Modorin runs away as running out of the gas. Finally, Rito saves Modorin amid danger of falling from a wall it climbed. Later on, Modorin is back to Run, as she regrets for its difficulty of looking after, and Nana suggests that Modorin may reside in her D-Dial.

In the chapter 21, Modorin is in Nana's Cyber Safari among other Modori Skunks.

In anime, Modorin appears in the episode 5 of Motto To LOVE-Ru and in the Ova 2 of To LOVE-Ru Darkness.