Momo Belia Deviluke

Momo Velia Deviluke is Nana's twin sister and also Lala's little sister.

Momo has short pink hair and purple eyes. She is generally sweeter than her twin, but develops a bad attitude whenever Nana takes credit for something she does; she shares a connection to plant life. She also has a strong attraction towards Rito (which is similar to Lala's but more lustful).

She has stated how his facial expressions are lovely, letting him touch her tail, and even becoming more aroused when Nana refers to him as a "beast". At times, she would even sneak into Rito's bed at night, but when asked why she does that, she simply replies that she is sometimes half asleep and unintentionally ends up in Rito's bed. At one time, she nearly stated how jealous she was of Lala that Rito's hand was stuck to her tail. Her tail is also able to shoot out lightning. Like her sisters, she has a cell phone capable of transporting objects. However, instead of gadgets, Momo summons plants.

In To Love-Ru Darkness, Momo is still wanting Rito's love, but unwilling to cause conflict between her sister or Haruna, Momo realizes if Rito becomes the next king of Deviluke, Earth laws will not apply to him, allowing him to create a harem where she can display her affections openly, and make Lala and the rest of their female friends happy at the same time. The twins then become Sainan High's students, where Momo takes it upon herself to try to bring out the "carnivore" in Rito, (which basically means awakening his sex drive) so he will take it upon himself to want to create a harem with all of the female cast.

So far, Lala, Haruna, Nana, Yui, Yami, Mikan, and Run are part of Momo's "Harem Plan", with Saki, Rin, Mea and even Dr. Tearju under consideration.