OVA
Description
Hikozaemon Otaki, usually referred to simply as Otaki or Otaki-senpai, is a supporting character in the anime Oh My Goddess! who appears regularly as one of the senior members of the Nekomi Institute of Technology Motor Club. He is a college student in his twenties and serves as one of the club's co-directors alongside his inseparable companion Toraichi Tamiya. The two are presented as older students shaped by the free-spending, carefree attitudes of the 1980s bubble era, and their exaggerated behavior often makes them feel out of step with the more grounded world around them. Like several other Motor Club members, Otaki's surname follows the series' pattern of naming club regulars after well-known model manufacturers.

In appearance, Otaki is tall and muscular, with a long face, a square jawline, tanned skin, and dusty blonde hair styled in a punk fashion. He is almost never seen without dark sunglasses with round frames, which hide his eyes and reinforce his rough, laid-back image.

Personality-wise, Otaki is boisterous, loud, and deeply unserious. Along with Tamiya, he is largely responsible for the Motor Club's poor reputation on campus, since the pair enjoy bossing around younger members, assigning them heavy physical work and odd jobs, and imposing grueling club traditions such as endurance runs and intense drinking parties. He treats the club less as a serious organization and more as a personal playground for amusement. Despite this, he is not truly malicious; he regards his junior Keiichi Morisato as a friend even while taking advantage of his goodwill, and his antics come across as thoughtless rather than cruel.

His motivations are simple: to enjoy his student years, surround himself with people who indulge his whims, and share good times with Tamiya and the other club regulars. He possesses no supernatural abilities and is entirely an ordinary human, but as an experienced motor enthusiast he is familiar with vehicles and club activities, and his physical presence and seniority give him authority over the younger students.

In the story, Otaki functions as recurring comic relief and as part of the everyday campus life that contrasts with the divine and supernatural events involving the goddesses. He and Tamiya frequently pull Keiichi into club business, including repair work, races, and money-raising schemes, which drives many of the series' lighter, slice-of-life episodes. His bond with Tamiya is the most significant relationship in his life; the two act as a comedy duo, amplifying each other's excesses and working as partners in nearly every scheme.

Otaki changes little over the course of the series and remains a largely static comic figure, though occasional moments reveal a warmer side, such as showing pride in Keiichi or stepping up for the club when it matters. His notable abilities lie in his practical knowledge of motorcycles and cars, his skill at organizing club events, and his physical strength, all of which he tends to use more for mischief than for genuine accomplishment.