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アイカツフレンズ!
Aine Yūki is good at making friends, and is enrolled in Star Harmony Academy's general education track. She befriends Mio Minato, the school's top idol, and becomes an idol herself.
One year after becoming Diamond Friends, Aine and Mio prepare to enter the Star Harmony Academy High School. But along with the responsibility of teaching the next generation of idols about Aikatsu, Aine and Mio begin a new journey in Aikatsu when they receive a distress call from a strange new idol named Hibiki Tenshou from space.
Everyone is taken by surprise at Hibiki and her Jeweling Dress. In an effort to unlock the dress' secrets, Mio and the other girls ask Hibiki to show them Space Aikatsu.
Hibiki wants to get to know the idols of Star Harmony Academy so her producers create a TV show for her to interview them. However Hibiki decides to make things more interesting by changing the interviews to a prank show.
Aine is determined to keep up with Mio and earn her own jeweling dress. Having found an unrefined jewel, Aine gets the chance to make it shine when Mirai asks her if her protégé Wakaba can shadow her for the day. Unfortunately Aine lets thing go to her head and nearly loses the chance of earning her own jeweling dress.
With three jeweling dresses now in existence, the other idols begin wondering how to find their own unrefined jewels. HoneyCat and Reflect Moon both go searching for jewels and end up stumbling upon an old shrine. The shine is found to contain a magical stone which causes the idols to mix up their Friends pairs. Everything starts out great with the new pairs having new experiences, until the stone's power turns malevolent.
Hibiki is still no closer to reforming I Believe with Alicia and is at a loss at what to do next. While confiding in Aine, Mio and Mirai, Karen suddenly appears and informs Hibiki she has spoken with Alicia. Karen reminds Hibiki that she has yet to meet Alicia in person and ask her to reform their Friends, but Hibiki is reluctant do to her fear of rejection. However Aine and Mio promise to inspire Hibiki to overcome her fear by overcoming their own fear of Love Me Tear.
After being asked by Hibiki to accompany her to the Sorbette Kingdom, Aine and Mio begin preparations to leave Japan. This proves more problematic than normal when Aine reveals she has never left Japan before, nor does she have a passport.
The girls finally arrive in the Sorbette Kingdom, but find they are banned from entering by the country's military on Alicia's orders. However Alicia's younger brother Charles comes to the rescue and allows them entry. Hibiki speaks with Alicia and attempts to convince her to reform I Believe but Alicia refuses. While wondering what to do next, Charles asks the idols about Aikatsu as no one in the kingdom has heard of it. Aine and Mio decide to hold a concert to introduce the people of the Sorbette Kingdom to Aikatsu.
After a blizzard buries Aine and Mio's snow stage, the girls get a surprise when Karen and Mirai show up to help. The idols notice some children watching them and ask if they would like to do Aikatsu, which the children agree to. However after Karen and Mirai confront Alicia, the children suddenly change their mind, not wanting to do Aikatsu anymore. So Mirai decides to play a game to cheer everyone up, no one can say Aikatsu until she says so. Instead everyone must say 'evol ustakiA'. Note: 'evol ustakiA' is taken from the Japanese 'キスイダツカイア', which is 'アイカツダイス' reversed. This is romanized as "Aikatsu daisuki" or simply "Love Aikatsu"
Despite Alicia's resistance to Aikatsu, Aine and the others still perform their Aikatsu while staying in the Kingdom. This eventually leads to the people of Sorbette joining in. Alicia begins to question her feelings for Aikatsu when old memories begin to resurface. However this leads to the Captain of her Knights, Snowdan, to misinterpret her emotion as anguish toward Aikatsu. In order to protect Alicia's feelings, Snowdan bans Aikatsu in the Kingdom, making Hibiki determined to find a way to counter him and bring a smile back to Alicia's face.
Aine and Mio find out that they must return to Japan soon in order to continue their Brand Sponsorship. The two are downhearted they haven't been able to help Hibiki and Alicia yet. The citizens of the Sorbette Kingdom ask the idols to make Alicia to smile again before they leave. Hibiki believes that Alicia need only take to the stage and her love of Aikatsu will be rekindled. However, when Charles' pleas fail to sway his sister's mind, an incoming blizzard gives Mio an idea.
Honey Cat and Reflect Moon decide to hold a welcome back party for Aine and Mio. Unfortunately, Maika and Ema are unable to help with preparations due to their work schedule so Sakuya and Kaguya decide to handle it on their own. Luckily Mirai and Karen arrive home early and Mirai lends Wakaba to lend a hand. But things don't go as smoothly as the idols would like.
Alicia wonders how to best get back into Aikatsu and asks Pure Palette if she can follow them round for a day. Alicia also realises she has nowhere to stay yet so Karen volunteers to have Alicia stay in her mansion. Between Pure Palette's Friend Energy and Karen's kindness Alicia begins to understand what she needs to do to move forward.
As HoneyCat's world tour comes to an end, Maika and Ema discuss what they should do next.
Aine and Mio ask Hibiki when she and Alicia will start doing Aikatsu together as I Believe. However, Hibiki reveals she hasn't had a chance to speak with Alicia since returning to Japan. Aine has an idea and tells Hibiki to ask Alicia on a Friends date.
Star Harmony Academy is holding an open day event for people to come and see the school and how the idols train. Mirai offers to have Wakaba lend a hand as she feels her protege is still lacking something essential for becoming an idol. Wakaba manages to help out fine until an old friend of hers appears at the school, causing Wakaba to become distressed.
Wakaba comes to realise what she has been missing as an idol. Having seen how much she has grown, Mirai decides it's time for Wakaba to stand on her own and make her debut. But as the day she has been waiting for approaches, Wakaba seems troubled and reluctant make her debut.
Alicia receives some shocking news from her brother back home. The harsh winter climate of the Sorbette Kingdom is intensifying and threatening to take away the citizen's smiles again. Alicia recalls a legend from the kingdom about a festival involving the jewels that could create a miracle. Aine and Mio realise that they could recreate the festival in the legend using their Jeweling Dresses. Alicia asks everyone to help and Karen and Mirai recommend Pure Palette to produce the festival. However Tamaki is apprehensive about letting Aine and Mio go through with it since they have a lot of work to do, such as the up coming Aikatsu! Go Kart Grand Prix. Aine and Mio tell Tamaki that if they win the Grand Prix, that will prove they are more than up to the challenge of producing the festival and to allow them to do it.
The idols are given a well-deserved break from work and spend the day at the beach.
Alicia feels reluctant to reform I Believe with Hibiki, feeling she is far behind Hibiki in her Aikatsu having spent the past five years on hiatus. As Alicia struggles to catch up, Hibiki offers to assist her.
