Taihei Doma is one of the main characters in "Himouto! Umaru-chan," serving as Umaru Doma’s older brother. He works as a system engineer in the system support department of "Diamond Service." Taihei is known for being calm, responsible, and gentle. He often looks after Umaru and her friends, acting like a big brother to everyone around him. While he seems plain, he is secretly very reliable, smart, and careful about taking care of others, even though he sometimes spoils Umaru. Taihei is popular among the people around him due to his kind personality, and many girls like him, though he is clueless about romance. He is a hard worker everywhere, both at work and at home. Despite his busy life, he wants his sister to become independent in the future.
Taihei Doma has a plain look, with glasses and short hair.
His hair sticks up like little antennae at the top of his head.
He is 170 centimeters tall.
He often wears clothes with cat designs or logos.
Taihei is gentle, calm, and very responsible.
He almost never loses his temper, even though his friend Takeshi Motoba, who has known him for over a decade, has rarely seen him angry.
But if Taihei does get angry, he can be very scary, especially when it involves cooking.
He is a hard worker and helps out both at his job and at home.
Taihei is caring and always looks after others, especially Umaru.
He is also very thrifty, but will sometimes give in to Umaru and buy her expensive things.
Taihei Doma is an alumnus of Arayata High School.
He was a top student, always getting perfect scores on tests.
He was known as "Demon Taihei" in school because of his high grades.
Now he works as a system engineer at "Diamond Service," helping out his coworkers at the office.
Taihei is very smart and was always top of his class in high school.
He is skilled at cooking and puts a lot of effort into making healthy and tasty food, especially for Umaru.
He is not great at playing video games, since he rarely plays them.
However, he is very good at crane games and is incredibly strong at rock-paper-scissors.
Taihei has a driver's license, but he is not confident in his driving and is a "paper driver."
He is also not good at skating for similar reasons.
Taihei is Umaru Doma’s brother and takes care of her every day.
He also looks after Umaru's friends, like Nana Ebina and Kirie Motoba, who see him as a big brother.
Nana Ebina, Kanau Kongou, his classmate and now boss, and other girls have crushes on him, but Taihei is clueless about their feelings.
He has a long-standing friendship with Takeshi Motoba, even sharing late nights at work.
His birthday is June 2.
His blood type is A.
Taihei likes cats, wearing cat-themed clothing and dreaming of living surrounded by cats.
His favorite hobby is taking walks on weekend mornings.
Even though he is very sensible, sometimes his taste in things is a little strange.
He was ranked 3rd in the "character popularity poll."
Everyday Life with Umaru
Taihei works hard at home to keep things tidy and make good meals.
He often helps Umaru with her studies, and thanks to him, Umaru has great grades at school.
Despite Umaru living a lazy lifestyle at home, Taihei still takes care of her and hopes she will become more independent in the future.
He always worries about her habits, but usually gives in to her demands, showing his soft spot as a big brother.
At Work and Social Life
Taihei usually covers for his less capable coworkers.
He sometimes works overtime together with Takeshi Motoba, showing his hardworking personality even outside home.
When work projects don’t go well, Taihei never gets rude and always tries to support others.
Kindness and Hobbies
Even though he can be strict, especially about cooking, Taihei is rarely harsh or loud.
He loves cats, and his room or clothes often have cat images.
He enjoys morning walks on his days off, finding peaceful moments during his busy life.
Taihei is a key reason why Umaru does so well at school.
He is very attentive about food and always tries to teach Umaru healthy habits.
Even if life gives him a lot of struggles, Taihei always thinks about family first and keeps a good relationship with his sister.
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