|Kanji||由比ヶ浜 結衣 (ゆいがはま ゆい)|
|Hair color||Brown (Dye)|
|Occupation||1.High school student|
2.Member of Service Club
|Affiliation||Sobu High School|
|Light Novel Debut||Volume 1, Chapter 3|
|Manga Debut||Chapter 1|
|Anime Debut||Episode 1|
|Seiyu/Voice Actor||Nao Touyama (Japanese)|
Hye Ok Jeong (Korean)
Yui Yuigahama is a student in class 2F of Sōbu High School and the first official customer of the Service Club, whom later becomes the third member of the club.
Yui is a teenage girl with shoulder length coral hair, in which a small portion is worn in a bun. She has peach eyes and fair skin. She looks exactly like your typical high school girl, reveling in her youth.
Yui is mostly seen wearing her school uniform, which consists of a black blazer with a white shirt underneath it of which three buttons of her blouse popped, a red ribbon tie, a plain short skirt, and black stockings. But sometimes she doesn't wear a tie or blazers. Her outfit completely defies the school code.
PersonalityYui is mentioned to be cute with no boyfriend. Yui is a cheerful and outgoing girl; even when she's sad or upset she always has a smile on her face in public. She has said that she always wants to fit in, and that disagreeing with friends used to bring her anxiety. In other words, she is a typical high school girl. This can be seen when she got excited when Tobe mentions his idea of a confession.
She is an expert of reading the mood and adjusting herself to it. Hence, she hides her opinion and state what others want to hear. Yui's very sensitive to the politics of the class, even more than the regular person. She's known as the "glue" of Hayato's clique as she is always the one providing the energy and friendliness.
She admires Yukino and Hachiman for being able to say what they think and their honesty in their interactions. She being drawn to their carefree attitude is one of the reasons she joins the volunteer club. After her experience with the service club, she was able to speak off her mind a bit more.
Though Yui is easy going and blend in with the group, she showed her agitated side when Yumiko stated her hatred of Yukino in the service club at the time of her request which surprised both Yumiko and Yukino
Though Yui never stands out in matters of academic, intellectual and athletic grounds, other characters always comment on her social intelligence and awareness; always being able to tell the mood of the whole group and her ability to make everyone comfortable.She has the ability to sing and was able to memorize the lyrics of a song with only ten minutes before performing as shown in episode 12 . She is a good coordinator as shown in organizing the class play for the cultural festival.
Though she is not very good at cooking and other activities, she tries her best without any hard feelings, following the suggestion of Yukino at the time of Yui's request. She also participated in the Athletic festival.
Yui lives and grew up in a big apartment complex with lot of children of her age. She always tried her best to get along with them. When all of the children played house pretend, she ended up becoming the dog even though she wanted to play mother because another girl wanted to play mother.
Yui states that she didn't had any romantic relationship in the past but her friends do. She is also still in contact with one or two friends from elementary school, even though she was friends with thirty classmates.
Yui also had the experience of a friend of a friend theory of Hachiman similar to the victims/suspects of false chain message as she explained how it was awkward when the person who keeps the conversation going isn’t there. She never know what to say so she end up playing with her phone.
In Chiba village summer camp, there is a hint of guilty conciseness in Yui's past. Yui might have wanted to befriend some ostracized person but afraid of other classmate and hence avoided such possibility. We can learn that from Yui's words. Yui says that people didn't hate Rumi and just didn't know how to approach her without being the next victim of bullying. In the light novel Hachiman thinks that in the past, Yui might have done something to conform with the rest of the class.
On the day of the high school entrance ceremony, Yui went for a jog with her dog, Sable. The dog got off its leash and ran to the middle of the road in front of a speeding car. Hachiman saved her dog from a potential car crash by leaping in front of a car leaving him injured and hospitalized.
But Hachiman didn't seems to recognize Yui from that incident until his sister Komachi, who had received sweets from Yui after the accident as a gift to Hachiman, told him who she was.
Later Yui wanted to make homemade cookies for someone and requested help from the service club. Later she became a member of the service club. After the Chiba summer camp, Yui recognized the car that hit Hachiman as Yukino's car and Yukino was in it at that time, but Yui doesn't seem to hold any hard feelings towards Yukino as Yui understood Yukino's situation well.
She later volunteered as candidate for Student Council president after realizing Yukino's participation.Later she planned on Choosing Liberal arts for her career path for third year
In the later series of Episode 11 (adapted from Volume 9 chapter 10), Yui has been shown to be very observant of the relationship of Hachiman and Yukino. Yui might also suspect they have feelings for one another. ( In the Volume 10, chapter 7) Yui seems to observe Hachiman and Yukino chat while they're alone in infirmary, hoping maybe she can get some clues about their relationship. When Hachiman opened infirmary's door on the way back to his classroom after being treated by Yukino, he find Yui in front of the infirmary, and ask her whether she is get there just now, and Yui reply that she just got there with a shocked expression. Judging from her expression, it is implied that Yui has been there for a while, and not to mention also hear Hachiman and Yukino chat when they're alone in the infirmary.
- (Greeting) "Yahallo!"
- (To Hachiman) "How can you be so smart and yet not understand something simple? I never wanted to see something like that."
- Yui's first name is also in her family name. Four characters who share this characteristic are Yukino, Saki, Rumi and Meguri.
- Her dog's name is Sablé.
- Her pink phone has a skull and bones pattern, which is the same one as the first sticker on the volunteers club door sign (since she was the first student the club helped). Because of that, she is probably the one who puts the stickers on the volunteers club blank room sign (since the room is actually a storage room.) after each successful student helped.
- She drinks tea in the volunteers club in a cup with a lethargic dog drawing.
- She received presents from both Yukino and Hachiman for her birthday.
- She is one of the few to have Hachiman's mail address and phone number.