Fukuyama Jeanne Sachie

Fukuyama Jeanne Sachie (福山･ジャンヌ･幸恵) is a second-year Lily who attends Ludvico Private Girls' Academy. She is the captain of Legion Ironside. She is the Schwester of Kishimoto Lucia Raimu. She is recognized as one of the top Lilies in Ludvico and is considered one of the Star Lilies. Sachie is one of the main protagonists of the Ludvico stage plays.

Personality
Sachie is a kindhearted girl who has a strong sense of responsibility. She is nice and friendly to her fellow students, even participating in playful moments with them, and is well trusted by them. She is also encouraging even to other Lilies from different gardens like Team Hitotsuyanagi. Due to going through a similar experience to Shirai Yuyu, she is able to emphasize with her.

Sachie is shown to be a good leader to her fellow Lilies as well, shown especially after she becomes the leader of Ironside. Notably, she is the one to motivate her legionmate Seren when she goes through a breakdown.

However, Sachie is willing to go against the higher ups if she deems them unjust, tying in with her sense of justice. This is shown when she left Temple Legion, despite knowing it will put her in a disadvantage.

Sachie was initially struggling with her emotions after Mirai's abandonment and later death, even lashing out at Raimu once. However, she shows that she is able to learn and improve from those mistakes, like treating Raimu far better after their initial meeting.

History
Sachie has fought alongside Shirai Yuyu and many others during the Odaiba Counteroffensive, which earned her the title of being one of the Star Lilies.

Sachie's first Schwester was Kishimoto Maria Mirai. However, Mirai suddenly broke her Schwester's bond with Sachie and became more distant to her. A month later, Mirai sacrificed her life to save Raimu and Seren, leaving Sachie saddened, alone, and confused.

Schwester's Prayer
At the beginning of the stage play, Kayo mentions Sachie as one of the top Lilies in Ludvico.

During training, Sachie meets Raimu for the first time and lashes out at her, being frustrated at her for not being strong enough despite Raimu being only a 1st year and called her not suitable for being a Lily. Despite these words she still felt guilty. Later she is stunned when Raimu asks her to be her Schwester despite their rough start.

During the Easter Festival, Sachie forgets to give Raimu a pendant (which means a request to be Schwesters), causing her to be sad. Suddenly, there is a Huge attack near the hills where Raimu is at, so the Temple Legion is assembled to deal with it. They start doing the Neunwelt Tactic to defeat the Huge.

Kayo tells Sachie the truth about her former Schwester Mirai — that she was a Boosted Lily experimented on by GEHENA. Yuria confirms because she was also experimented on. She then criticizes Sachie for not being there for Raimu, especially because Mirai sacrificed her life to save her. Realizing her actions, Sachie swears to protect Raimu. Afterwards, Temple Legion finishes the Neunwelt and kills the Huge.

Near the end of the play, Raimu finally becomes Sachie's Schwester.

League of Gardens
Sachie, Kayo, and Kotohi join Team Hitotsuyanagi and the others in fighting the Huge. In the climax of the fight, Sachie and Kayo participate in one of the two Neunwelt Tactics, which destroys the Huge.

Schwester's Secret
After the events of Schwester's Prayer, Sachie has built a much stronger bond with her Schwester Raimu. Sachie at the beginning of the play meets Sachie and encourages her to give flowers to Ichika.

Later, she and the other Lilies of Temple Legion perform the Neunwelt Tactic to finish off the Huge, but it isn't effective, Mirai, resurrected from the dead by GEHENA, finishes off it. Sachie, Raimu, and Seren are horrified to see that Mirai has been resurrected and has gone rabid, almost killing all three of them. When Sachie shows her pendant to her, however, she regains her senses and tells the three to kill her the next time they see her.

In the second fight against the Huge, Sachie and the others perform another Neunwelt, but the same thing happens and Mirai comes back to kill it. Sachie, Seren, Nagisa, and Himari fight against Mirai, however, they are no match for her. Sachie and Seren eveutnally restrain her, allowing Raimu the chance to land a fatal blow on her with the magiesphere from the Neunwelt.. Sachie, Seren, and Raimu grieve over being forced to kill her. Afterwards, Raimu and Sachie share a hug and cry over the events, but Sachie says they can't cry forever and that they need to be strong to carry on Mirai's dream.

White Resistance ~Whereabouts of Promise~
After the events of the previous play, Sachie is frustrated and distrustful with Ludvico's secrecy and alliance with GEHENA, She has a conversation with Takatori Natalie Towa, a 3rd year who was friends with Mirai. She wants to create a new legion in order to carry on Mirai's will, and asks Sachie to join, but she say she'll think about it. Sachie later pays respects to Mirai in the Ludvico graveyard.

A Cave outbreak occurs, and Temple Legion is sent. Sachie and the others struggle with the Huge until Hanaoka Angela Moe activates Phantasm, allowing them to win the battle. Himari asks Sachie to fight together once more, but Sachie leaves the legion. She questions why Ludvico didn't give them any warning about the Huge attack beforehand. Sachie leaves the Temple Legion and decides to form a new legion, naming it Ironside.

Later in the play, a Gigant class Guge attacks, and Temple Legion and Ironside are sent to fight it. Due to finding out the truth about her mother's death, Seren panics and isn't there to fight, so Sachie comes and finds her. She tells Seren that her feelings for Mirai weren't a lie, and that she should fight for justice as a Lily. Feeling encouraged, Seren comes back to the battlefield and joins Ironside. Later, Temple Legion's Neunwelt fails, so Ironside does one themselves, killing the Huge.

White Resistance ~The Blade of Truth~
Due to Ironside's rebellion against the academy, they are persecuted and not allowed to join training with the Temple Legion.

Kokoro and Mei return and explain that Raimu, Seren, and Kayo are trapped in their instructor Rina's room, so their respective Schwesters Sachie, Tsugumi, and Yuria are sent to rescue them while the other Lilies deal with the Gigant Huge.

Sachie and the other Lilies try to fight Sayoko and Reika but to no prevail. After they are defeated, Rina and Ryoko arrive and incapacitate the two instructors.

The Fateful Gift
Near the beginning of the play, Sachie, Raimu, Yuria, and Tsugumi, who is implied to have joined Ironside as well, fend off a Huge attack in Ludvico. Because of altered Huge escaping from the GEHENA research facility under Ludvico, Lilies from other gardens in Tokyo are sent to help them.

Later, the four Lilies participate in one of the three Neunwelt that finish off the Huge.

Lost Memories
Sachie, Raimu, and Marie play a role in defeating the Huge alongside Hervor, Kiito, and Ui while Team Hitotsuyanagi and Matsuri try to save Yuyu from Gozen and Kotohi.

Anime/game
Sachie and Raimu make their appearance in Chapter 2 of the main story.

Trivia

 * Sachie's favorite food is crepes.
 * Sachie's main hobby is listening to music.
 * Sachie likes musicals and karaoke, and she dislikes sewing and detailed work.
 * Sachie's existence as a character predates her presence in the Assault Lily universe. A character named "Fukuyama Sachie" appears in other plays by Ludvico Private Girls' Academy dating back to 2014, where she is also performed by Nakamura Yukari. However, in some of these plays, Sachie differs significantly from her Assault Lily incarnation in appearance and personality.
 * According to Obanazawa Kenei and Sakuragi Sayaka, since Sachie was an extremely unfortunate character in the 2014 play "Worst-Luck Girl", they wanted to see a different side of her in the Assault Lily plays and decided to make her a cool character instead.