Senshu was a human male travel guide who partnered with Kamahachi to escort Princess Misa and Jedi Knight Tsubaki back to her exiled royal palace. Choosing a dangerous path to avoid checkpoints, they navigated the perilous Place of the Gods, earning over 500 credits each for this service. Kamahachi vanished within that region; Tsubaki found him, and they rejoined Misa and Senshu in a nearby village.

Later, during Tsubaki and Misa's attempt to infiltrate the palace and overthrow Sith Lord Masago, Senshu and Kamahachi created a diversion by sending burning hay bales rolling down a mountainside to distract the guards. This action resulted in their capture by palace guards. Senshu and Kamahachi faced direct threats from Masago while detained.

Throughout the journey, Senshu displayed practicality and a belief in destiny. When Kamahachi first disappeared in the Place of the Gods, Senshu interpreted it as divine punishment or fate and advised against a search, contrasting Tsubaki's rejection of predestination. Senshu also participated in traditional practices, singing protection songs against evil spirits while traveling through hazardous regions.