Nuppuru

Nuppuru-Kun is a Minerarun of the galaxy Aquan. It is Mikado's patient and a very rare animal. It looks a watery monster with eyes and whose normal size is very small in comparison as really seen, it measures about one metre in width.

Abilities
It doesn't seems to have great powers or abilities, only appears to be able to absorb water for making itself very large. Water Absorption: It can absorb water for becoming gigantic immediately in which all amount of the swimming pool became the part of its body. Watery Tentacles: It uses water of its body which can create tentacles for capturing people. Waves: It creates waves for capturing people, it is seen when it captures Lala. Watery Prison: It can capture people with its own body until they drown.

Plot
It appears in the water of swimming pool at the end of the chapter 159 of To Love-Ru. In next chapter, chapter 160, it hits the principal who had leapt towards Run and Kyoko, and at that moment, it is revealed and captures Run and Kyoko with its watery tentacles but Kyoko makes them free by casting her fire. On the other side, it captures Momo and Rito and begins to do perverted things to Momo, and then captures Yui, Risa, Mio Saruyama, but Momo releases two of them by using the ray of her tail, and Yami releases the others by using her transformatioin, but Nuppuru captures Haruna and eats her and when Lala tries to save her, it uses its waves for capturing Lala, too.

In the chapter 160, it wants to capture Mikan but Yami impedes it. But because of this, it could capture Yami, and then Rito rescues Haruna and Lala, but Rito is captured instead of them. Finally, it is defeated by Yami and it is back to the owner, alongside back in its normal size.

It also appears in the episode 12 of Motto To Love-Ru.