Luminous (流美那寿) (ルミナス) forms.
The band is commonly referred to online as Rubinasu (流美那寿) (ルビナス). However, in 2021, guitarist Haruhi (はるひ) referred to them on his Twitter as ルミナス (ruminasu). It seems that we've all been mispronouncing the name—and missing the pun on the word “luminous”—for decades.
While it is somewhat unclear, vocalist Nami (那魅) and bassist AKIRA seem to be members prior to November of 1992.
An unknown member change happens. Guitarist Sato (さと), and possibly Tsukasa (つかさ), seem to join around this time. The line-up becomes the following at this time, at least.
V. Nami (那魅) / G. Sato (さと) / B. AKIRA / D. Tsukasa (つかさ)
Luminous (流美那寿) disbands (unconfirmed date, but not before August of 1993 -- as they appear in a minikomi released then)
Luminous (流美那寿) was a visual kei band. They were active from 1989 to 1993 and are now disbanded.