Nana Astar Deviluke

Nana Aster Deviluke is a major character in the To Love-Ru anime and manga. She is the older twin sister of Momo and the younger sister of Lala. She is the 2nd princess of Deviluke, behind Lala.

Her second name (Asuta/Aster) might be a reference to a prince of hell Astaroth, owing to the similar pattern in the names of her sisters and father. Which is most certainly just a play on their family name and devilish tails/wings.

Background
Nana is the second princess of the planet Deviluke and daughter of King Gid Lucione Deviluke and an as of yet unseen mother. She has two known siblings, Lala and Momo, the latter who is her twin sister. Little else is known about her life on Deviluke except that her life may have been less pampered than her elder sister Lala as she and her twin are less comfortable naked around others and she is more mature than her older sister (to some extent).

It is not known how or when she developed her ability to communicate with animals but it did exist long before her time on Earth, long enough for her to have collected a large number of "friends" to summon with her phone.

Appearance
Nana appears to be around the same age as Mikan and Golden Darkness. Like her sisters, she has long bubble gum pink hair which she keeps as pig tails on each side of her head. She has violet eyes and a very pronounced sharp tooth on one side of her mouth that shows whenever she opens her mouth. Unlike her sisters, Nana is predominantly flat-chested, something that she is very sore about as it keeps getting brought up as a running gag in the series. As with others from Deviluke, she has a tail with a spade-like ending that is particularly sensitive to the touch, much like her sisters'.

Personality
Nana has a very mischievous personality backed by a very large inferiority complex due to her short comings in comparison to her siblings. She has a habit of taking credit for her twin sister's work and ideas, which often results in her being punished with a quick tail squeeze. Nana's ability is somewhat reflected in her personality as she has a habit of turning violent at the drop of a hat, particularly at Rito, when she thinks he is taking advantage of one of her sisters (though most of the times this only applies to Lala) or later on when she begins to have feelings for him.

At times Nana can seem highly over enthusiastic about various things both big and small, particularly when she and Momo get to play a prank on the rest of the group.

Powers and Abilities
As a stark contrast to her twin sister, Nana has the ability to summon animals with her phone instead of plants. Also, Nana has the ability to talk to animals directly.

With regards to physical strength, there is no direct information about it but it can be assumed that, like her sisters, her strength is above that of an average human's.

Rito Yuuki
Nana's first impressions of Rito are that he is weak and indecisive. However, after seeing his determination and compassion, she begins to develop feelings for him. She tries to hide these feelings from herself initally but when he saves her from falling down, she realizes these feelings were true, though she continues to deny them.

Haruna Sairenji
Nana and Haruna do not have the amount of contact that Nana and Rito have, but Nana does know that Haruna loves Rito. She found out about this secret when she found Maron, Haruna's dog. Since she can talk to animals, Maron indirectly told her that his owner loves Rito. Then Haruna shows up and confirms that she is in indeed in love with Rito.

Nana has also sought advice from Haruna about love.