Bridal Chest: A Maiden's Chastity (乙女の貞節
, Otome no Teisetsu
Buraidaru Chesuto
?) is Frankenstein's large war hammer (battle mace) that discharges electricity with the appearance of tree branches when used as a striking weapon. Kept on her at all times even while not in battle to power her, the large, spherical orb on the top contains her reactor core, her heart.[1][2][3] Although used as a bludgeoning weapon against enemies, particularly effective against armored enemies, it can be considered only a secondary use to its primary function of absorbing excess magical energy from the environment.[4][5] The "fin" on the opposite end of the mace remotely transfers electrical energy to her main body by means of the similar fin on the side of her head.[2][1] It is a high-efficiency implement that continuously gathers and recycles energy wasted by her and gathers energy present in her surroundings to continuously power her by flowing it through her heart and into her Magic Circuits.[2][4] Able to use Galvanism (ガルバニズム, Garubanizumu?), the unrestricted conversion and accumulation of magical energy and bio-electric energy, thaumaturgical attacks involving no material existence, such as wind manipulation, energy bullets and beam attacks, can be converted into electricity and rendered without effect upon her, discharged into the environment. It falls under the domain of Alchemy, like Phlogiston and Ether, that explains organic activity as a bio-electric process.[1]

Design Schematics of the Bridal Chest

If she should be exposed to an environment with a high-magical energy content, such as in combat where the dispersed converted magical energy discharged by Servants and magi and dissipated into the atmosphere is abundant, the function of Galvanism and the Bridal Chest combine to qualify the Noble Phantasm as a "pseudo-Type II Perpetual Motion Engine."[4][2][3] Galvanism allows absorbed electricity to be used to implement rapid self-repair and physical attribute reinforcement, allowing her to emulate a Mana Burst to some extent.[1][4] It is not an all powerful ability, unable to fill the gulf in speed between her and Archer of Red even with it enhancing her, but it is extremely convenient for her as a Berserker-class Servant whose regular supply of energy can barely last five minutes without the support of her Master's homunculi replacements. Able to fight perpetually at full power without any outside support, the need to rest, or even the need to breathe until the death of the enemy, losing the weapon would put her into a great crisis, but losing her heart would mean her loss almost immediately as well.[4][5] It also acts as the means of using her sacrificial Blasted Tree ability.[2]


  1. 1.0 1.1 1.2 1.3
  2. 2.0 2.1 2.2 2.3 2.4
  3. 3.0 3.1
  4. 4.0 4.1 4.2 4.3 4.4 Fate/Apocrypha - Volume 1
  5. 5.0 5.1 Fate/Apocrypha - Volume 2

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