Hyota Arakome, a scientist cadet aboard the Yamato, balances a nerdy demeanor with a comically exaggerated presence. Crewmates dub him "shinmai"—a playful nickname derived from the kanji in his surname, signaling his "rookie" status despite his technical prowess. His ingenuity shines when he repurposes the wave motion gun’s recoil into a propulsion method, an unorthodox solution overlooked by senior officers like Sanada, rescuing the ship from catastrophe.

Rooted in assistant director Kazunori Tanahashi’s influence, Arakome’s design and recurring role reflect his creator’s legacy across Yamato media. English audiences encounter him as Neville Royster in *Star Blazers: The Comet Empire*, retaining his technical aptitude while leaning into comic relief, complete with a meteor phobia.

Arakome’s arc culminates in the final clash against the Comet Empire, where his critical discovery of Gatlantis’ power center pivots the Yamato’s strategy. His abrupt demise following this triumph seals his evolution from a sidelined jester to an indispensable asset, cementing his legacy through sacrifice and strategic brilliance that steers the crew through dire stakes.