Teppo

テポ

Teppo
Teppoテポ 
MeasurementsHeight: 60cm
Eyes, Round
Body, Tail, Tiny
Role, Artificial Intelligence, Rabbit
Visual novelsSide character - Ar Tonelico III ~Sekai Shuuen no Hikigane wa Shoujo no Uta ga Hiku~
Voiced byJessica Strauss (English (Uncredited))
Saitou Ayaka (Japanese)

Description

A program that Hikari created in order to investigate Saki and Finnel's mutliple personae issues.
Teppo is an acronym for his real name, Trans Encoder & Personable Program Optimizer.
You see him by installing him as a plug-in. When Aoto Dives into them, Teppo keeps him company. Teppo is capable of detecting cracks in their minds and repairing them.

[From official site]