Lewis

Lewis (ルイス Ruisu) is a major character in Succubus in Wonderland. She is the first daughter of the Queen of Hearts, the older daughter of Carroll, and Reto's first companion in the game.

Appearance
Lewis has pale skin, long pink hair tied into twintails, purple eyes. Like most succubi, she has an hourglass figure, curved horns, bat-like wings and a spaded tail. Her clothing consists of a bikini, choker, gloves and thigh-length high-heeled boots, all black with purple decorations and white frills. She also wears a heart-shaped ornament in her hair.

Background
Lewis and her sister lived a happy childhood in the Mysterious Castle with their mother, the Queen of Hearts. However, one day the Queen was cursed by the White Rabbit, causing her to change into a cruel tyrant. Lewis ran away from her family, looking for a way to restore her mother to normal.

Succubus in Wonderland
Eventually, Lewis comes across Reto, a human boy who had been transported from his world to the front of the castle. Reto was being approached by the castle's gatekeeper, but Lewis comes to his rescue and introduces herself. She tries to trick the gatekeeper into leaving by saying that her mother forbade attacking lost humans, but the gatekeeper is overcome by hunger and attacks Reto. Lewis helps the boy fight her off and says she'll help him. In truth, she plans to raise him up so that she can increase her own power by feeding on him, but she keeps this a secret.

Later, while going through Stray Coast, Lewis asks Reto about how he came here, and says that the rabbit he met might be March Hare. They then meet the enigmatic Cheshire Cat, who tells them about Hearts Day: a day when the Queen will drain many other succubi to death in order to increase her own power, though this was formerly a simple holiday that was celebrated by releasing balloons.

Throughout their journey, Reto and Lewis occasionally encounter other strange individuals: Alice, another human who ended up in this world; a talking bird named Lorina; and the Hatter, a profit-minded succubus who runs numerous shops around the world.

Eventually, the pair arrive at Atuchu Cave, in which three succubi attack Lewis and Reto falls through a pitfall. After an encounter with Carrol, Reto runs back to Lewis and the three succubi leave, but not before they've drained a lot of Lewis' power. Reto has to bring Lewis back to a previous village for treatment. Lewis notes that the succubi were her mother's minions and she'd like to take revenge on them, but she'll prioritize helping Reto. Reto leaves, and then Lewis thinks to herself (presumably regarding her plans for Reto).

Lewis and Reto eventually meet the March Hare, but it turns out that she wasn't the one who brought Reto to Wonderland. As they leave the Hare's house, the Hatter (here for a tea party) asks Lewis what she plans on doing about Hearts Day. Lewis says she can't fight her mother and this is why she accompanies Reto, then tries to cover up her slip of the tongue. They leave the house.

In Zendegee Forest, they meet Carroll again, who reveals Lewis' true plan to Reto. Lewis admits this was her original plan but says she now only wants to help him. Carroll attacks but is defeated by the combined efforts of Lewis and Reto. The succubus sisters get into an argument over what to do regarding their mother, and Carroll storms off. Shortly afterwards, the pair encounter the Cheshire Cat again, who claims she's betting on whether the two sisters or the Queen of Hearts win.

While passing through Papilio Plain, they meet Cheshire Cat again. She attacks and, after being defeated, thanks them for the entertainment. She says that the curse on the Queen of Hearts can be broken by stirring up her emotions, but this must be done soon before the Queen's magic increases on Hearts Day.

Later, in Proof Undersea Tunnel, Lewis is kidnapped by slimes. Reto comes to her rescue again, this time with a surprising ally: Carroll. It turns out that Carroll changed her mind after hearing Lewis' words in their last encounter, and now wants to work with Lewis to break their mother's curse.

Finally, the trio return to the castle and confront the Queen of Hearts. The Queen has incredible power that makes her seemingly invincible, but Carroll and Lewis appeal to her original self, causing her power to gradually fade. She tries to convince Reto to leave as the succubus sisters will inevitably betray and kill him, offering to spare only him if he agrees, but Reto refuses. Finally, the Queen is defeated and her curse is broken.

Back to her original personality, the Queen thanks them and says she'll make amends for everything she's done. Lewis asks the Queen to help Reto return to his world, and the Queen gives him a key that, when used with a magical monument on the castle roof, will open a one-way path back home. The three succubi say goodbye to him, though add flirtatiously that he can always come back to them. Reto uses the key and disappears. The Queen then tells her daughters to prepare balloons as they'll make this a Hearts Day that everyone will remember.

The credits roll, showing the succubi celebrating Hearts Day by releasing balloons. Lewis and her family are among them, and they release three balloons from the castle roof.

However, the story does not end there. Reto returns to Wonderland and reunites with Lewis, who's shocked at this return. He explains that he'd encountered the White Rabbit again, and Lewis deduces that the White Rabbit will return to the castle to curse the Queen again. She says Reto doesn't need to risk himself any more, but Reto insists on helping. They hurry back to the castle and confront the White Rabbit in a room. The White Rabbit talks cryptically about the sins against Alice and this story soon coming to an end, then attacks. When defeated, she tells them to enjoy this peace while it lasts, but she'll finish it in the future. She suddenly changes to a different personality, one unaware of the situation. Carroll arrives and explains that the White Rabbit was herself a pawn of someone from a different world, though that someone won't be able to act again for some time as they'll need time to recover their power. The succubus sisters decide to continue investigating this matter.

Trivia

 * Like her sister, Lewis' name comes from Lewis Caroll. This is the pen name used by Charles Lutwidge Dodgson, the author of Alice's Adventures in Wonderland, which inspired Succubus in Wonderland.