This look at the android responsible for protecting life in Algo, Wren, gives up a glimpse of his early design. As with most other characters, there is little change between the early and final designs of Wren. His joints have less armor protection in this version. His chest area is altered as well, most notably with a symbol added to the portion that is typically colored crimson. This symbol is difficult to make out, but seems to be somewhat similar to the three pronged star worn by Espers. Since the same symbol has been used on Nei, perhaps Wren, Nei, and the Espers were all going to be closely tied together originally.

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Wren Designs, Part 1.