Kotaro Ohara

Kôtaro Ohara, better known by his formal title Chairman Ohara, was a recurring character in the UMEMARO 3D canon, often in an antagonistic or ambiguous role. He is first introduced one of the initial antagonists in Twin Succubus, dying at the end of this release. He later makes a brief appearance in Work in Progress, and is the male protagonist in Cheeky Girl. A younger Ohara appears in The Chiropractor -Erotic Este Course-, Sugimoto Gynecology Clinic ~Nurse Reform Program~, and Sexy Trainer Shoko Sugimoto, appearing alongside Shoko Sugimoto in each instance.

Appearance
Ohara is a tan-skinned older man, wearing thick, black-rimmed glasses. In The Chiropractor, Sugimoto Gynecology Clinic, Cheeky Girl, and Sexy Trainer Shoko Sugimoto, Ohara kept his head shaved bald; In Twin Succubus, he has let his white hair grow out, wrapping around the back of his head, and he is not shown wearing clothes at any point; the same is true for Work in Progress. He wears a plain button-down shirt and dress shoes in Work in Progress, an all-white masseuse outfit in The Chiropractor, a typical teal nurse's smock in Sugimoto Gynecology Clinic, and a yellow gym shirt and black athletic shorts in Sexy Trainer Shoko Sugimoto.

Traits
Ohara is a lecherous, perverted old man. In The Chiropractor, he is timid and nervous, though he willingly deceives a client into believing that his massages will improve her appearance, and eventually has sex with her under the pretense of "treatment," in order to preserve his business's livelihood. He is eager to punish Chiha Rokuhato in Sugimoto Gynecology Clinic by raping her, continuing to demonstrate his lecherous, amoral nature. By the time of Twin Succubus, he is regularly partaking in the rape of schoolgirls from the university he oversees, along with his lawyer Hosokawa. He has the personality of a typical high-level businessman, repeatedly mocking Chokugen for his subpar performance as a principal. He does not bother to learn the names of people he doesn't care about, as evidenced when he didn't remember the name of Shinnosuke Nakata, his assistant. He does have a bit of a twisted sense of generosity, however, offering one of the hypnotized girls to Shinnosuke.

Ohara is Masaaki Ohara's grandfather; with Chokugen being Masaaki's uncle, and Kayo Shinozaki being Masaaki's cousin, it is unknown what their family tree is. He is related to Hajime Tanaka in some manner as well, as Tanaka and Chokugen identify each other as brothers. Ohara's son appears alongside him in Sugimoto Gynecology Clinic.

In releases after Twin Succubus, Ohara seems to have devolved into a stand-in for the lecherous old man archetype common in hentai, particularly in regard to Shoko Sugimoto, who he has appeared alongside in three of his last four appearances. Though he has a significant role in The Chiropractor, where he is shown to still have dubious morals, his timeline is unclear, and it is equally unclear how he ascends from these menial jobs to being the rich chairman of the University of Yomei in Twin Succubus.

History
Similarly to Shoko Sugimoto, Ohara's timeline is unclear, appearing in several pre-OMEGA releases in chronological terms. His appearances are presented in the order of their release below.

in Twin Succubus
Ohara's first appearance is in Twin Succubus. Ohara, along with Hosokawa, are explained as having girls brought to them every night, hypnotized by Mimi Minami, and raping them, such that they do not remember the ordeal the next morning. On the occasion in the game, Shinnosuke is present, and Chokugen brings Kamira and Kurusu Kotara to them. Ohara allowes Shinnosuke to pick one of the twins, while he and Hosokawa double-team the other. However, during the course of this, the twins are revealed to be succubi, and one of them absorbs the essence of both Ohara and Hosokawa, killing them. The end of the game reveals that this was part of Chokugen's plans all along.

in Work in Progress
Ohara seems to appear briefly in Work in Progress despite his death in Twin Succubus. He is seen after Shinnosuke regains consciousness, waiting in line to have sex with Hana Ono, leaving after he gets his brief turn with her.

in The Chiropractor
Set well over a decade before Twin Succubus, Ohara runs the Ohara Body Therapy Center that has fallen on hard times in The Chiropractor, in danger of closing because of the lack of business and debt despite remodeling the building. When a young Shoko Sugimoto enters the parlor seeking skin treatment, he jumps at the opportunity, despite having no idea how to do what she is asking for. Eventually, he molests and has sex with her under the pretense of "treatment," despite trying to back out when he is tired out. When Shoko leaves, he wonders if she will ever come back, hoping for more "business."

in Sugimoto Gynecology Clinic
Ohara appears once again, with the same model he had in The Chiropractor, this time as a doctor in the clinic that Chiha and Shoko work in. Shoko sends Chiha to him after she is caught having sex with Kenji Kataoka at work, and he punishes her by showing Kenji having sex with Shoko's nurses. When she protests, he and a colleague rape Chiha and force her to continue watching Kenji with the nurses and Shoko.

in Cheeky Girl
Ohara is the main male protagonist once again in Cheeky Girl, using his same recent model, apparently as a teacher at the school Chidori Toda attends. He visits her in an empty classroom and solicits sex from her while she engages in several phone conversations. When he is finished, she states that she'll see him at the end of the next term, and leaves him alone in the classroom.

in Sexy Trainer Shoko Sugimoto
Ohara is one of three male protagonists in Sexy Trainer Shoko Sugimoto, where he is a member of the gym Shoko works at. He frequently has sex with Shoko and has no regard for other members of the gym, nor does he have any restraint, asking Shoko to demonstrate one of the machines solely to get her in a position where he could take advantage of her. He proceeds to have sex with her, in tandem with Tanaka and Ichijo, several times in various positions.