Lumière is often the person who sits at the side during missions, she spends a lot more bonding time with Armbrust than Éclair. She is also far more intelligent than Éclair (at least with Éclair's mental blocks in place) and on numerous occasions, things that are obvious to Lumière and the audience are not obvious to Éclair, but she has more than one experience when her life was in major danger because she has no physical ability. Her weapon of choice is a COP 357 Derringer.
SpoilerLumière has also been the subject of numerous rebirths over the last 200 years, but unlike Éclair, has never had her memories erased, explaining her maturity and experience. It is not described if they are reborn at the same time or separately, but in one flashback, Lumière is shown showing Éclair the ropes around the GOTT after Éclair had her memories erased. Lumière takes this fact far better than Éclair, who has been shown to have had fits over this. Her true power, the G Class ability "Particle" enables her to control matter at the subatomic level. At one point she uses it to reconstruct her own body after it is atomized in a power supply unit. When she reorganizes her own particles, she takes on the form of a much taller, adult version of herself so as to allow her body to have capacity to use her power again after having lost the use of it. This is quite taxing however, as she was only able to sustain it for a short time. Lumière was killed and had her abilities absorbed by Dvergr during the assault on GOTT headquarters, but was recreated by Eclipse later on using her "Quantum Leap" ability.
Voiced by: Hirano Aya