Momo Belia Deviluke

Momo Velia Deviluke is Nana's twin sister as well as Lala's little sister. Momo is sometimes referred to as the "Third Princess of Deviluke", since she is the youngest of the three princesses. In To Love-Ru, she used to be seen with Nana all the time, but in To Love-Ru Darkness, they are not together as often as before. This is because while Nana became friends with Mea Kurosaki, whom she hangs out with more often, Momo becomes more attached to Rito and focuses on expanding Lala's "Harem Plan".

Appearance
Momo has short pink hair and deep purple eyes. In the To LOVE-Ru manga, Momo's hair was frizzy, but in the beginning of To LOVE-Ru Darkness, Momo straightened her hair out, in hopes that Rito will see her as more mature. Like all Devilukeans, Momo has a long black tail at her back, and like her sisters, she has a spade-shaped tail end. Momo also has a bigger bust than Nana, which the latter sometimes envies. When Momo turns into "evil Momo", she acquires a short fang similar to Nana's except that Nana's fang is on her right side while Momo's is on her left side. Her pupils also become thinner and pointed.

According to VMC, her measurements are 80-54-79 (estimate).

Personality
While other characters would describe her as sweet, kindhearted and innocent, the real Momo is, above all else, highly perverted, a side of herself which she doesn't show to others in school, and which she opens up to Rito, whom she loves and lusts for. She often fantasizes perverted situations with Rito even if it's him with another girl, and desires for him to become sexually active towards her. She often sneaks into his bed at night half naked to sleep with him because, in his sleep, he becomes much more frisky and physically active than he is aware of.

She seems to enjoy physical pleasure so much that it's difficult to determine whether or not she is mistaking sex for love. One of the reasons that she fell in love with Rito is because she loves his unintentional lustful tendencies which he shows when asleep. She doesn't care if she is not Rito's favorite lover, and is perfectly satisfied being one of many partners, and hopes that Rito's other love interests are also as willing to share and compromise their love for Rito. And she even offered and tempted Rito to possess his own "flower garden of girls". Nonetheless, whatever way she interprets love, she at least takes it seriously. She is not willing to show her lustful side to anyone or be groped by anyone except Rito. And she turned down the chance to be accidentally kissed by Rito in his sleep, wanting to receive a kiss from him only when he wants to.

Momo is also known for her yandere tendencies, which some characters who truly know her would describe to be the real Momo. She is generally sweeter than her twin sister, but develops a bad attitude whenever Nana takes credit for something they do. She also shows a darker and more sinister side of herself whenever her friends are in trouble, and she becomes more mischievous and hostile. Some examples of this event are when Nana and Yami were in trouble in Planet Mistletoe, when the VMC planned to beat up Rito, and when Yami, Mikan and Rito were threatened by Azenda. People have generally stated that Momo becomes very scary when this occurs. Momo calls this her battle state, a state which Yami and Mea have commented to have a tremendous amount of bloodlust.

Although she can be rather perverse and even selfish with her desires on occasions, she is still a very kind person to those she cares about and is willing to do anything to make them happy, including helping Rito choose more than one woman when he obviously cares about so many. She's even willing to go to the extent of being absolutely protective over others, like when she made it her current goal at a time to make sure Rito wasn't harmed by Yami, and threatening the VMC to let Rito go and apologize to him after beating him up and promising to do worse.

Momo occasionally fiddles with her hair when thinking over important situations concerning either Nemesis or her Harem plan, which she would seem very serious about.

Background
Ever since childhood, Momo and Nana always argued. Whenever they fight, their older sister, Lala, would always arrange ways for them to make up, and for Zastin not to be angry with them. An example of this is when they were children, and Momo and Nana were fighting, but Lala caused her inventions to run amok then asked for Momo and Nana's help to catch them, so that Momo and Nana will work together, and Zastin would scold Lala instead.

Momo first made an appearance together with Nana in Chapter 97 of the To LOVE-Ru manga. They were responsible for the Trouble Quest, a virtual reality RPG game that they programmed to observe Lala's friends. After seeing that Lala had great friends surrounding her, they returned to Deviluke. A few chapters later, they went back to Earth after escaping from Deviluke and their studies. However, they forgot that Zastin was also staying on Earth, who was instructed by their father to bring the them back home. It was revealed that Momo and Nana also have D-Dials, but instead of gadgets, they were able to summon plants and animals, respectively. In the end, they defeated Zastin and his assistants, and convinced their father that they're going to stay on Earth with Lala.

During Momo and Nana's stay in the Yuuki household, they created their own house in the attic using space distortion. They also took care of all their necessities to avoid bothering Mikan for cooking, cleaning, etc. However, they still come down sometimes to eat Mikan's cooking.

Throughout the series, Momo gradually developed affectionate feelings for Rito despite him being the fiancé of her sister. Momo would constantly sneak into Rito's room, sometimes even half-naked, revealing Momo's lustful side. Whenever she's asked of the situation, she simply says that she accidentally gets into Rito's room while she's half asleep. Momo has also stated that she knows Rito would not reciprocate her feelings, and that she's content just to be a lover.

In To LOVE-Ru Darkness, Momo organizes the "Harem Plan", that was originally proposed by Lala. This is a plan to make sure that Lala can still marry Rito, and at the same time, Momo's love for Rito would be reciprocated. The first phase of her plan was to get into Sainan High so that she can monitor Rito and the female characters closely. The second phase was to turn Rito into a "carnivore" so that he would take it upon himself to create a harem. To do this, she manipulates the situation so that Rito would end up in a romantic situation with one of the female characters that have feelings for him. Of course, Momo also manipulates situations so she can get a romantic situation with Rito. So far, herself, Lala, Haruna, Nana, Yui, Yami, Run, Rin and even Mikan (despite being his sister) are part of her "Harem Plan", with Mea, Kyouko and even Dr. Tearju under consideration to be part of the plan but, it's still unofficial as to whether or not they'll be part of the plan in the end. As of now, Momo's plan is gradually taking effect as initially, Rito rejects the idea, but is slowly considering it.

She continuously tries to find ways to make every girl around Rito fall for him as part of her Harem Plan. She would sometimes buy love simulation games as part of her research for the plan, which she uses to set the mood for him and a certain girl he's with or even when it's her. She hopes that one day Rito might return her love as well as the love of every girl who has feelings for him.

Powers and Abilities
She shares a connection to plant life, and has the ability to communicate with them. She would always use a D-Dial that her sister made for her to summon plants and fruits whenever she needs them from an interplanetary botanical garden.

Like her sister, Lala, she also has the ability to shoot beams out of her tail. However, instead of a laserbeam, she fires lightning. Like her sisters, Momo also becomes weak whenever someone touches her tail. This weakness is usually taken advantage of by Nana whenever they get into fights, though usually first by Momo. However, Momo also possesses the Devilukeans' super strength and their bloodlust, making her very dangerous in battle.

She's also proven to be a very good actress, managing to fool Rito whilst in Nana's body that 'Nana' was severely attracted to him and wanted make sure he liked her despite her breast size.

Trivia

 * Like the other parts of the Devilukean family, Momo's second name is a reference to the demon, Belial.
 * She have a look-a-like at the manga Mayoi Neko Overrun at chapter 3 page 23