- "I was just about to say that you were being way too much like your normal self, Xianglian, but there’s someone I clearly don’t know mixed in!"
- ― To a drunk Xianglian while men adore and shower her with gifts
- "Well, at least I know you haven’t changed, Sherria. ...And I suppose there is something I should say. Welcome home."
- ― To Sherria after she returns home at the end of the Second Witch War
|Epithet||The Magical Index|
|Alias(es)||Leixia (Her given name)
Big Sis (Chelia Amicus)
|Alignment||Blue and Orange|
|Age||Several thousands of years old factoring in time travel|
|Birthday||February 22nd, 1597 (Aquarius)|
|Birthplace||Xian Outskirts, Ming Empire (present-day China)|
|Affiliation||Destiny Cram Academy (Headmistress)
Destiny Library (Founder and Owner)
|Occupation||Founder of Librarium City
Headmistress of Destiny Cram Academy
|Family||Yan Xianglian (Legal guardian/Mentor/Surrogate big sister)
Sherria Amicus (Older Sister half-sister)
Xuan Nu- Niece
Farah Amicus- Student
Saika Kaiser- Student
|Favorite Food||Chicken Souvlaki|
|Hobby||Reading a book while relaxing in a hot bath|
Lynn Amicus is Sherria Amicus's younger half-sister and Yan Xianglian's adoptive daughter. She is the founder of Librarium City and the Headmistress of Destiny Cram Academy. She was born with a Perfect Memory, but wasn't born a Jewel, much to her chagrin, a flat chest. She holds within herself 206,001 grimoires. Lynn can apparently control her internal clock, which is so perfect that she doesn't see the need of having any digital or mechanical watch.
She is the Headmistress of Destiny Cram Academy and is also a world renowned lecturer of Magic Analysis, Dead Languages and Magical Literature, Lynn is the only daughter of Mr. Fargo, a wealthy Monegasque explorer and alchemist. She resides in a hidden dimension called the Viole Library, which contains a vast archive of knowledge from various times and alternate universes that is disguised as a very luxurious fortress-like mansion in which she lives with her father, and her butler Cecil, near the end of Sheol Gate.
Her specialty is intercepting psychic abilities and magical spells with her vast knowledge of Anti-Jewel and Anti-Psychic combat. She is also the one who came up with the "Disunified Field Theory of Magic".
Despite being the founder of Librarium City, she looks like an eighteen year old girl. Her real age is unknown, but if Major General Reinhardt's thoughts are any indication, Lynn Amicus looked the same as she was forty-six years ago, and that her age is still a mystery. Regardless of her true age, Lynn looks youthful. Lynn is an elegant young woman of half-Monegasque, half-Chinese heritage with crystal-white skin, short, dark brown hair, and large amethyst eyes, comparing her appearance to that of a gem sold in shop. Her very presence makes her stand out in a crowd.
She is gentle and polite with people and has a kind nature, as shown when she picked up a stray child and took her home, although Cecil initially refused. She also, like Sherria, has the trait of sacrificing herself for other's sake which is why several people befriended her in the past. She is a highly competent teacher, being a teacher of Magic Analysis and Esoteric Literature, an expert in time traveling, psychokinesis and, Obsolescence fields, as well as being knowledgeable in the area of the Magic Curriculum Program, Calamity Triggers and Jewel mining/development.
It has been noted by Cecil that she actually goes out of her way to go to places where runaway girls go to and allow them to live in her place as a freeloader. This may be slightly correlated to the fact that the freeloaders who live in her mansion end up cooking for her, making her feel like royalty, in the process.
When in the mood, she has a casual and joking nature towards other magic gods like Gremory and Byouri Mitsuari, and even her frenemies such as Suzie Queen and Etward Ibis, to the point that they can spout violence against her without repercussions. She can be quite the tease as she always tried to get Ken Fukuzawa or her butler Cecil to bathe with her whenever they are alone, as well as being completely willing to wear a Santa costume with a mini-skirt and crop-top for a children's charity, much to Cecil's chagrin.
She loves onsen and has a huge collection of the latest designs of onsen from Destiny City in Sheol Mansion, courtesy of Sherria as a gift to sweeten relations between the two sisters, in addition to other technology such as the latest design of Magi-com Devs given to the female student body of Librarium City.
Lynn is passionate about teaching but has a weakness, that weakness being the fact that she’ll feel extremely dejected whenever she feels she has lost an opportunity to teach others, like when she is told Ken Fukuzawa is ignoring her lesson, tearing up before the entire class. She also "threatens" her students to learn occasionally, as she has a punishment game for class where they must play and win ten rounds of Strip Poker in a row while being blindfolded.
Despite her immodest personality she is highly politically savvy even when it comes to problems outside of Librarium City.
She also seems to have less modesty than most, as she had no problem nearly fully exposing her breasts to her male students to show them her "Witch Mark" to prove that she is a "Witch". At the same time, she dislikes wearing revealing clothing (those were Cecil's choices in fashion) and would rather don casual, modest attire.
- Ultimate Archive Magic- This Magic is a variation of Archive, allowing the user to convert information into Magical data, which can be stored, enabling the user to gain access to previously stored information, such as other types of Magic, but in a more powerful sense. It is mainly used by flat-screens which are projected into the air and contain information on them.
- Information Transferal- Lynn with her Ultimate Archive Magic can transfer information to anyone anywhere at anytime she wants.
- Knowledge Replication- Lynn can access the knowledge and skills of anyone in Destiny City or Librarium City's database thanks to the effects of the Ultimate Archive Magic.
- Encyclopedic Intelligence- Lynn has a very deep understanding of the world's history, including techniques, weapons, spells, people, and events, thanks to her Ultimate Archive Magic and Time Travel.
- Star Reader Magic- Like her half-sister, Sherria Amicus, she is capable of divination by reading the stars of others.
- Regression Magic- A form of Arcane Forbidden Black Magic which allows Lynn to significantly lower the magical and physical skills of a target. Along with this dangerous reduction comes a supplementary effect which decreases the physical age of the victims, making it look like they turned into a younger version of themselves. Affected targets suffer from lack of proper movement because of the new size of their body, slower and notably weaker Magic usage, greater Magic consumption, weaker physical abilities and lower defense. However, if she loses control of her emotions, the effects of the Magic are nullified and all afflicted targets return to their normal state.
Inhuman Eidetic Memory- Lynn is capable of perfectly memorizing anything and everything that comes into contact with, which is one of the reasons why she was chosen as the host for the 206,001 grimoires, magic books that are too powerful for a normal human mind to handle. Not only that, but she has powerful analytical skills, able to examine a 60fps anime easily, as well as making her able to reconstruct an image on a surface, like a balloon or bottle, even after it is destroyed. She can recall every taste, sight, book, sound and smell she has ever experienced (since birth) and knows, to the second, the amount of time that has passed since she last saw someone. She can also memorize an opponent's attacks and replicate them near perfectly.
- Counter Spell- She uses Amicus codes, a quick spell rearrangement method that uses only the last two letters of a word, to hijack the spell formula that the caster has been conjuring in their head and cause the magic to go berserk or be outright cancelled.
Personal Time Control- Thanks to an accident with an experimental chronoporter, Lynn has the ability to control her own time, allowing her to speed it up and slow it down at will. After this event she became one with Time itself became a time traveler of the temporal world. She can even affect the flow of time in metaphysical planes.
Wicked Tsunami Walk- Another ability that all witches have, Lynn is able to ignore gravity's bonds and walk on any surface.
Dude Magnet- Lynn always had amazing success with the men, to the point of strongly attracting Bazaar, a centuries old elite sorceress, ice-cold political mastermind... and a notorious campy male.
Absorbing Healer: Lynn takes a stance that allows her to absorb and nullify all incoming magical attacks, restoring her health based on how powerful the spell was.
Time Slip: Lynn is able to return the battle back to the way it started if she is somehow defeated, but this only works once per a day.
Veritas: Lynn controls a magical orb that is hotter than fire and heavier than iron in battle; it is capable of creating waves of energy.
The Ultimate Grimoire: The grimoire that Lynn carries with her. It contains and is formed out of the incantations from the 206,001 Grimoires that she memorized. It is lighter than a regular chapter book and can contain a virtually infinite amount of information. It does not deteriorate over time, and contains its own will - only Lynn can wield it. It comes with an auto-chanting mode - by waving it over her head, Lynn can make it automatically recite its incantations for her.
- Lynn needs her Ultimate Grimoire to call upon the full extent of her abilities, and without her magic she is only as physically strong as a human.
- She dislikes conflict and avoids killing.
- Xianglian mentions that Lynn may emit some sort of Magic field that causes boys to always appear near her, and complains that when it comes to boys, her movement and thinking ability will improve many times over.