The same way you write it - rei. Pronunciation RAY-ee.
Rei Chao's birth name is Gonzalo Rei Chao.
Toffer Rei's birth name is Kristoffer Rei Nolasco Tragico.
Rei Sakuma's birth name is Reiko Sakuma.
Marina Rei's birth name is Marina Restuccia.
Rei Nakanishi's birth name is Reiz Nakanishi.
Rei Natsume's birth name is Fujitani, Hiroko.
Rei Dan's birth name is Mayumi Yamazaki.
Evelyn Rei's birth name is Kirsty Anne Symonds.
Alexander Lo Rei's birth name is Luo Chang-An.
Za Rei
REI was created in 1938.
this character name rei ayanami. i guess.