OVA
Description
Nobuyuki Masaki, father of Tenchi Masaki, balances a career as an architect with a mischievously voyeuristic streak. Descended directly from Yosho Masaki Jurai, his diluted Juraian bloodline bestows a lifespan exceeding two centuries, though he employs techniques to present himself as middle-aged. Born in the 1800s and orphaned young, he forged a deep connection with Katsuhito’s daughter, Kiyone Masaki, marrying her despite her penchant for pranks. Their union brought two children: Tennyo, who departed Earth, and Tenchi, whom Nobuyuki raised alone following Kiyone’s passing.

In the primary OVA timeline, Nobuyuki initially resided with Tenchi in the city but retreated near the Masaki Shrine after Ryoko’s disruptive awakening. He eventually returned to urban life, sharing a home with Rea Masaki, his assistant-turned-second wife. Their bond strained when Tenchi uncovered the truth behind Kiyone’s fabricated death narrative, though harmony was later restored. The couple welcomed a son, Kenshi—protagonist of *Tenchi Muyo! War on Geminar*—further expanding Nobuyuki’s familial ties.

Alternate continuities reimagine his origins. The *Tenchi Universe* frames him as Katsuhito’s son-in-law, wed into the Masaki family, with Tenchi’s mother being Achika, who perished defending Earth. This iteration retains his playful voyeurism but lacks longevity, often lamenting lengthy commutes. The film *Tenchi Muyo! in Love* contrasts this, depicting a reserved younger Nobuyuki bonding with Achika over shared passions for architecture and videography.

Consistently, Nobuyuki merges comedic levity with paternal devotion. His hobbies include collecting shoujo manga and lighthearted peeping antics, while his architectural expertise shines through designs of the family residence across series. Though occasionally irresponsible, he anchors the household, offering financial stability and mediating tensions arising from Tenchi’s heritage and romantic entanglements.

*Tenchi in Tokyo* softens his voyeuristic edges, emphasizing his role as a supportive father easing Tenchi’s urban transition. Here, he navigates comedic mishaps and occasional cigarettes, aligning with the series’ altered tone. Spin-offs like *Tenchi Muyo! GXP* and *War on Geminar* indirectly honor his legacy through Kenshi’s adventures, underscoring Nobuyuki’s enduring impact despite sparse direct appearances.