Tenjōin Saki

Saki Tenjouin is the arrogant self-proclaimed queen bee of the school. She is currently in her third-year. Saki consistently tries to defeat Lala in everything, stating there can only be one "queen" in Sainan High. She even tries to seduce Rito (despite not loving him), but later, she falls in love with Zastin Deviluke. She once teamed up with Run Elise Jewelria to make Lala look bad in front of Rito and to prove that Saki is the queen of all things.

Appearance
Saki ﻿has gold eyes and light gold hair that's lightly permed in the back and curled into spirals over her shoulders.

Rin Kujou
Rin is Saki's bodyguard and friend. Her family has served the Tenjouin family for generations.

Saki considers both Rin and Aya to be her closest friends, to the point that she ran away from home rather than be forced by her father to study abroad without her friends. Rin, on the other hand, while caring for and greatly respecting her, is a little more divided between her loyalty to her Saki-sama and obedience to her family, who serve Saki's family. This was seen when Saki ran away from home, and Rin arrived to bring her back by force rather than support her. Ultimately, Saki did not leave to study abroad, and they were able to remain together.

Aya Fujisaki
Aya is Saki's close friend. As a child, she was often bullied and Saki protected her. So far, Aya has served little purpose throughout the series besides following and supporting her Saki-sama, whom she idolizes. She has never been seen without accompanying her friends, being something of an extra to their group. But Saki does care greatly for Aya as well as Rin, and wouldn't take the chance to study abroad than to leave her friends.

Being weak-willed and nothing truly remarkable, Aya is perhaps one of the few evidences that the usually arrogant Saki Tenjouin has a good and kinder side towards lesser people.

Lala Satalin Deviluke
Saki considers Lala to be her eternal rival, and goes through any means to prove that she is better than her. Lala remains totally oblivious that Saki holds a competitive grudge against her.

Zastin Deviluke
Saki has been in love with Zastin ever since he helped her get her limo out of a small hole on the ground. She was frustrated when she found out that he is Lala's servant. She tries to get closer to him and gain his affections, but with little success. While Zastin is always formal and polite towards her as he is with everyone else, it is unknown how he feels towards her and he seems slightly oblivious to her feelings, and there is little evidence that he has romantic feelings towards her.

Rito Yuuki
At first she tried seducing him to make Lala jealous, but this did not last long. Since then, any and most of her appearances seem to only serve the purpose of being a victim to the perverted mishaps that surround Rito.

Due to her feelings for Zastin, she along with two of close her friends are the only ones in the female cast who have absolutely no romantic feelings towards Rito, and she gets mad at him whenever he accidently does something perverted to any of them. Just as well because in To-LOVE-Ru Darkness Chapter 31 Momo didn't consider her or ayako in her harem, however Rin on the other hand is still under consideration.

Saki unintentionally showed Rito a warmer side to her when she showed kindness and hospitality to Riko Yuusaki, until Riko's shocking revelation, which only added to Rito's already perverted history.

Trivia
Cameo appearance in Mayoi neko overrun in ch 3 pg 24.