|“||If there were 48 hours per day, I'd be making a 48-page offset print book...||”|
She wears two hats as a student and a doujinshi artist.
Eriri is one of the most beautiful girls to attend to Toyogasaki High School. Her family is very affluent. Her father is an English diplomat and she lives in a mansion. She is the secret illustrator for a famous doujinshi circle called ''Egoistic Lily'' under the alias Eri Kashiwagi (柏木 エリ Kashiwagi Eri) when she participates in doujin activities. She was greatly influenced by her fujoshi mother and otaku father. She was the illustrator for Blessing Software.
Eriri is a beautiful, petite girl with long, straight blonde hair, which is usually tied up into twin-tails, laced with two blue ribbons. Her eyes are light blue and she has very pale skin, which is probably inherited from her father. She has small breasts and Utaha sometimes teases Eriri about it. Her face features and build resembles her mother heavily. She is usually depicted in her school uniform or casual clothes. At home, she wears glasses and a green tracksuit.
Eriri is a model and sophisticated young lady at school. When nobody is around, she reverts into a hardcore otaku just like Tomoya. Because of her manners, she is respected and fawned over by other students at the school. However, most none of them know about her otaku side.
She is famous at school because for being classy and independent, but she really is emotional and ferocious, as described by Tomoya. She is very hardworking as her occupation as an artist and with the support from Tomoya, she feels like she can do anything.
She is very determined at times. When Akane Kosaka insulted her drawing skills and said that they were mediocre, Eriri was very offended and drove herself to produce more art to prove Akane wrong, subsequently pulling herself out of her art slump.
Eriri also has a tsundere-like personality and gets embarrassed and blushes very easily. She hides her feelings for Tomoya although her feelings are very obvious. When Utaha pointed this out, she became embarrassed and rebutted immediately. Her voice seems angry and annoyed every time they have conversations in the game-making circle, especially with Tomoya. She hits him with her twin tails whenever he says something that made her embarrassed or when Utaha getting near to him. However, on the inside, she is very kind and generous despite her klutziness.
Eriri was born to a British father, and a Japanese mother. She and Tomoya are childhood friends. It is also shown that since Eriri was very little, she had always brought up Tomoya's name and that she only drew drawings leaving her studies aside. Eriri also said that Tomoya praised her every day.
Since elementary school, she's done nothing but focus on her drawings in stony silence, as if she wanted to forget something or to overcome something. Then, she recently started bringing up conversations about Tomoya, still a very little, but she seemed happy.
Eriri and Tomoya are childhood friends, and she is probably one of the closest persons to Tomoya. Being childhood friends and spending most of their time in the past together, the two have developed a very close relationship with each other. They would usually fall in love with works together, sharing it to other people, and even preaching it together, smile, fight and may other things together. In the manga, she was near at kissing him; however, that was just for the game's MC. But Tomoya even said that he wanted to be friends forever with Eriri, because she was the first and almost only otaku friend he had, and because of this, it is heavily implied that she has romantic feelings for him, but she never admits it, although her feelings are very obvious. She gets angry and jealous when Utaha gets too close to Tomoya and does something. However, Tomoya sees her as one of his best friends and he cares for Eriri a lot.
Eriri treasures Tomoya a lot and appreciates him, and vice versa. Tomoya's support keeps Eriri motivated to keep drawing sceanrios to the game, even under pressure. She even overworked herself one time, as she didn't want Tomoya down since she promised that she would become his "number 1". Despite liking him a lot, Eriri starts to work under another circle and Akane Kousaka as Eriri feels like she cannot improve her skills as an artist if she stays with Tomoya, because he never pressures her like Akane did at one point. This saddened both of them deeply.
Eriri is always jealous whenever Utaha is near Tomoya, and sees Utaha as her rival. It usually starts with the scenario: Utaha is with Tomoya, Eriri gets frustrated because of their proximity, then the whole hinted romantic rivalry becomes her covetousness of Utaha's ample breasts. Utaha realized Eriri's inferiority complex and would sarcastically tease Eriri when she has the chance. Eriri always says Utaha's full name when she gets annoyed or jealous of her, (and that happens very often). They sometimes seem to get along well when working on Tomoya's game together, though.
It is later revealed, however, that they actually admire each other work a lot. Despite not showing it, they have mutual respect for one another as "creatives" in the industry. They understand each other and admire the work they create. After Eriri got back to drawing after being in a slump, Utaha was actually overjoyed and wanted to see her art immediately. Utaha knows Eriri's struggles about how she can't improve as an artist if she stays with Tomoya. Utaha mentions that she will always be there for Eriri if she wants to cry. Despite their (hidden) friendship, they still have a rivarly, altough healthier now.
Eriri initially disliked Megumi because of her sudden entrance into Tomoya's life, but later finds a good friend in her to the point of referring to each other by their first names. As Blessing Software's illustrator, she is often frustrated by her inability to emote and pose, and takes advantage of any hint of emotion that she lets off. Despite their strong friendship, she still finds herself being envious of Megumi's closeness with Tomoya, but accepts their relationship as a positive one. Eriri cares about Megumi's impression of her and is one of the first on her mind when things turn sour in the circle, as she once mentions apologizing to Megumi specifically in a message directed to Tomoya. When Eriri first called Megumi by her first name, she said it was a slip of tounge, but it actually wasn't. Utaha said to Megumi, if she goes to close to Eriri, she might turn her life into a living hell. However, Megumi still went to her and called her by her first name.
Later in the series her friendship with Megumi was strain due to her leaving blessing software, however they eventually reconciled.
- Sayuri Sawamura is Eriri's mother. In the past, Eriri would usually go to Sayuri to talk about Tomoya and play together. Eriri loves her mom.
- She uses contact lenses at school. 
- She had 17 nicknames given by Tomoya in elementary school, some of which already known:
- She used to draw badly as a kid as described by Tomoya.
|Characters of "Saenai Heroine no Sodatekata" Universe|
|Main Characters||Tomoya Aki • Eriri Spencer Sawamura • Utaha Kasumigaoka • Megumi Kato • Michiru Hyodo • Izumi Hashima|
|Rouge en rouge||Iori Hashima • Akane Kosaka|
|Fushikawa Shoten||Sonoko Machida|
|Icy tail||Tokino Himekawa • Echika Mizuhara • Ranko Morioka|
|Relatives of the main characters||Keiichi Kato • Mr. Sawamura • Sayuri Sawamura|
|Class 2B||Yoshihiko Kamigo|
|Cherry Blessing characters||Seiji Azumi • Soma Hinoe • Meguri Kano • Ruri Hinoe • Kirari Spider Kawamura • Kaho Hibarigaoka • Miharu Endo|