To Love-Ru: The Deviluke twins

Momo Velia Deviluke

Lala's younger sister and Nana's twin; they are introduced when they have most of the characters in a virtual game world created by Lala that they subsequently modify. They claim they did this to determine the nature of their sister's friends and to test Rito's affection for Lala. Momo has short hair and is generally sweeter than her twin, but develops a bad attitude whenever Nana takes credit for what she does; she shares a connection to plant life. She also has a strong attraction towards Rito (similar to Lala's), stating how his facial expressions are lovely and even letting him touch her tail. At times, she would even sneak into Rito's bed at night and stating how jealous she was of Lala that Rito's hand was stuck to her tail. Momo and her twin are currently on Earth, running away from their studies. Momo has a special ability which allows her to communicate with various alien plants, which she summons through her phone made by Lala for her and her sister.

Nana Aster Deviluke

One of Lala's younger sisters, she is also the elder twin sister of Momo. Nana only appears to be more the mischievous of the two. She has an affinity for fauna. Both Nana and Momo are currently on Earth, running away from their studies. She didn't like Rito to begin with, but later warms up to him. She has tsundere characteristics. Nana also has a special ability to communicate with various alien beasts and animals. She also uses an invention of Lala which enables her to store her friends in a virtual space and summon them at will. Nana stated that she is the inferior twin, being flat. People say that she is the worse behaved of the two, even though Nana says it's because most do not know of Momo's dark side. Despite this, even after they argue, they make up again. Nana supports her Lala's relationship with Rito, even though she calls him a beast many times, this only helps Momo's harem plan in the end.