Tomoko is Taro Sado's mother. She incestuously loves Taro.

There are twisted tales and twisted tales, but few are as twisted as poor Sado's, who's just realized that he actually likes being made miserable. Of course, knowing that only makes him more miserable, which in turn... well, you get the idea. Desperate to break the circle, Sado volunteers for a special club where he hopes he can work through his issues only to discover that the other members have equally... complex... issues to deal with. 
For example, the hyper-aggressive club president Isurugi not only has a violent fear of cats, but also believes herself to be a god! Then there's Yuno, who's terrified of men; the Nurse, who forces other people to perform cosplay; and Hayama, Sado's best friend and a compulsive cross-dresser, who's also the girl that Sado is infatuated with. 
(Source: Sentai Filmworks)

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Her younger brother [Takashi Oohara](https://anilist.co/staff/96636/) is also a voice actor.

__Non-anime roles:__
- Harran - Goddess of Victory - Nikke (VG)
- Ningguang - Genshin Impact (VG)
- Mikasa - Azur Lane (VG)

The six Blu-ray Disc/DVD volumes for the MM! television anime series will each include one or two new, "somewhat extreme" anime short stories.

Sado Taro became a masochist, one that feels pleasure from enduring physical and or psychological pain, in middle school when his classmate, Yuno Arashiko, punched him. Now that he has moved up to high school with his friend, Tatsukichi, he wants to get rid of this sexual tendency and live a regular teenage life. He hears about this high school club called the Number Two Volunteer Club, headed by Isurugi Mio. The club is there to advise and help students in various needs and trouble. The only problem is that Isurugi Mio is an extremely violent and bossy girl, the type of person that treats Taro terribly and arouses him at the same time. Taro grudgingly asks for her help to solve his problem but what he doesn&rsquo;t know yet is that his life is about to get really complex. 
(Source: MangaHelpers)

Sado Taro became a masochist, one that feels pleasure from enduring physical and or psychological pain, in middle school when his classmate, Yuno Arashiko, punched him. Now that he has moved up to high school with his friend, Tatsukichi, he wants to get rid of this sexual tendency and live a regular teenage life. He hears about this high school club called the Number Two Volunteer Club, headed by Isurugi Mio. The club is there to advise and help students in various needs and trouble. The only problem is that Isurugi Mio is an extremely violent and bossy girl, the type of person that treats Taro terribly and arouses him at the same time. Taro grudgingly asks for her help to solve his problem but what he doesn&rsquo;t know yet is that his life is about to get really complex. 
(Source: MangaHelpers) 
Note: Includes the volume 8.5 and 9.5

Tomoko Sado