This article contains details about plotlines described in the anime.
Do not proceed unless you want to be spoiled.
|01|| "Come True! Our Dreams!"|
(叶え!私たちの夢―― "Kanae! Watashitachi no Yume")
|In Episode 1, Hideko first appeared with her friends Fumiko and Mika, seeing Honoka initially acting so cheerful at school.|
|02|| "Let's Start Becoming Idols!"|
(アイドルを始めよう! "Aidoru wo Hajimeyou!")
|In Episode 2, Hideko and her friends, Fumiko and Mika, approached Honoka and Umi at the school yard, stating that they saw the notice about the new school idol group and how they were surprised because Umi agreed to it, which wasn't the case at all.|
|03|| "First Live"|
(ファーストライブ "Faasuto Raibu" )
|In Episode 3, Hideko and her friends, Fumiko and Mika, offered to help Honoka, Umi and Kotori prepare for their first performance. Hideko and Fumiko tested and prepared the necessary equipment in the auditorium for the upcoming concert.
As the three idols stood in front of an empty auditorium, Mika arrived and met with Hideko who shook her head, informing Mika of the current situation.
During the concert, Eli entered the control room, much to Hideko's surprise, and watched the concert from there.
Right after Honoka, Umi and Kotori performed "START:DASH!!", Hideko applauded, along with the others who were watching.
|09|| "Wonder Zone"|
(ワンダーゾーン "Wandā Zōn" )
|In Episode 9, Hideko and her friends, Fumiko and Mika, gave words of encouragement to µ's for their practice on the school rooftop.
As the second years in µ's worked with Kotori, Hideko and her two friends went to visit the cafe.
As µ's performs Wonder Zone, Hideko and her friends are shown to be part of the audience.
|11|| "The Greatest Live Performance"|
(最高のライブ "Saikō no Raibu" )
|In Episode 11, Hideko and her friends, Fumiko and Mika, congratulated Honoka for having reached so far with µ's, which is qualified to participate in Love Live!.
Eli greets Honoka, who returned the greeting without using a proper honorific for a senior, and Mika pointed this out. After Honoka explains, Mika comments that µ's seemed like celebrities, which leads her to requesting for Honoka's autograph.
Hideko and her two friends are shown to be part of the audience before µ's began performing "No brand girls".
(ともだち "Tomodachi" )
|In Episode 12, Hideko and her friends, Fumiko and Mika, approached a gloomy Honoka and told her that they knew Kotori was going to study abroad, through Umi.|
|13|| "μ's Music Start!"|
(μ'sミュージックスタート! "Myūzu Myūjikku Sutāto!")
|In Episode 13, Hideko and her friends, Fumiko and Mika, discuss about the current situation between Honoka and her childhood friends and decided to cheer her up by hanging out with her after school.
Hideko and her two friends are shown to be part of the audience as µ's performs "START:DASH!!".
|01|| "Love Live! Once Again"|
(もう一度ラブライブ! "Mōichido Rabu Raibu!")
|In Episode 1, Hideko and her friends, Mika and Fumiko, were the MC's of the general assembly held to introduce the new student council president, Honoka. She had a cameo appearance on Honoka’s introductory song.
Later in the episode, she directed Nico Yazawa and the first year µ's members to where Honoka said she was headed to.
|03|| "The Door to Our Dreams"|
(ユメのトビラ "Yume no Tobira")
|In Episode 3, Hideko, together with the students of Otonokizaka, came to the rooftop of UTX High School to show their support for μ's who was about to perform for Love Live!.|
|06|| "Happy Halloween"|
(ハッピーハロウィーン "Happī Harouīn")
|In Episode 6, Hideko and her friends, Mika and Fumiko, were surprised when μ's came out of the bushes with costumes of punk and anarchy. As a result, they ran screaming.|
|07|| "We Have to Do Something!"|
(なんとかしなきゃ! "Nantoka Shinakya!")
|In Episode 7, Hideko, together with Mika and Fumiko, notified the student council regarding the approval of the art club budget even before the council meeting.|
|09|| "Melody of the Heart"|
(心のメロディ "Kokoro no Merodi")
|In Episode 9, Hideko was one of the students who helped out in clearing a pathway in order for Honoka, Umi and Kotori to rejoin with the other members of µ's.|
|In Episode 10, Hideko and her friends, Fumiko and Mika, met with Honoka in the Student Council Room, informing her of their work progress. Honoka apologized for having them do work during winter break and Mika reassured her then wished her good luck for Love Live!.
Hideko was one of the students that Honoka invited and gave mochi to, as a sign of gratitude for supporting µ's.
|12|| "Last Live"|
(ラストライブ "Rasuto Raibu")
|In Episode 12, Hideko and her friends, Fumiko and Mika, were shown to be watching something on a laptop, which is most probably a µ's performance.
Hideko and her two friends arrived at Love Live!'s final stage location and worried about µ's, only to end up rushing towards their designated seats due to lack of time.
After µ's performed "KiRa-KiRa Sensation!", Hideko was one of the people in the audience who called for an encore.
During the performance of "Bokura wa Ima no Naka de", Hideko and her two friends were shown to have brought µ's' costumes for the encore.
|13|| "Come True! Everyone's Dream"|
(叶え！みんなの夢―― "Kanae! Minna no Yume")
|In Episode 13, Mika and Hideko were shown to be helping with the decorations in the school gymnasium for the third years' graduation. They then requested for the records of the previous year's graduation ceremony from Honoka, Umi and Kotori.
After the graduation ceremony, Hideko and her two friends bid goodbye to µ's as they separated ways.
During the song "Happy maker!", Hideko, along with Fumiko and Mika, shortly appeared with pompoms similar to what the µ's members used.
- The "Hi" in her name is an alternate reading of the Japanese character for one, which combines together with Fumiko and Mika to be a pun for one, two and three.