An idol academy in the form of a luxurious cruise ship suddenly appears, and it's name is the Venus Ark! The one leading the cruise is the perfect idol, Elza Forte!!
Episode 51
Perfect Idol Elsa
Apr 6, 2017
A new school year begins with Yume now a fully-fledged S4 member alongside Ako, Mahiru, and Yuzu. As Yume launches her new brand, Berry Parfait, Ako is shocked to learn that the brand she was hoping to pair up with, Fuwafuwa Dream, has instead announced a contract with Kirara Hanazono, an idol from the ship-based idol school Venus Ark.
Episode 52
The Targeted Idol!?
Apr 13, 2017
As the threat of Venus Ark looms over the school, Yume and Rola decide to put on a show for the first year students.
Episode 53
Open Sesame! Obtain the Star Wings!
Apr 20, 2017
In trying to come up with a dress idea to rival Elza's Star Wings, Yume is told by her brand owner to think about what she herself would enjoy.
Episode 54
Kirara ☆ The Fluffy Idol
Apr 27, 2017
Wanting to take back Fuwafuwa Dream from Kirara, Ako sneaks into their headquarters with Yume and competes with Kirara to design the brand's new Premium Rare Dress.
Episode 55
All Aboard ☆ Venus Ark!
May 4, 2017
Upon arriving at Venus Ark, Yume, Rola, and Mahiru are greeted by Koharu, who explains how she was scouted as a designer by Elza during her studies in Italy.
Episode 56
Kyaa! Warning Ahead
May 11, 2017
While doing modelling work, Mahiru hears about a mysterious model known as Shooting Star who vanished from the public eye one day.
Episode 57
Sparkling☆Walking Weather
May 18, 2017
Looking to relieve some boredom, Kirara decides to tag along with Yume and Rola as they do a report show on various spots around town.
Episode 58
Miracle Audition!!
May 25, 2017
Koukadou holds another audition for a new campaign unit, which Yume, Lily, Elza, and Kirara all receive invitations to.
Episode 59
You Can Shine As Well
Jun 1, 2017
As Yume struggles to come up with a Premium Rare Dress for her brand due to her busy schedule, Koharu decides to hold a fishing contest for a change of pace.
Episode 60
Stuck To! The World of Elza Forte
Jun 8, 2017
Yume and the others decide to do a feature on Elza for S4's show, during which they are escorted by a first-year student named Alice Caroll. Just as the feature gets underway, Elza suddenly tells Alice that she is to be expelled at the end of the day due to her declining popularity.
Episode 61
The Feelings of Love
Jun 15, 2017
Ako is excited to be starring in a drama alongside Subaru, but struggles to keep her composure in front of him during a confession scene with him.
Episode 62
The One who Inherits the Stars
Jun 22, 2017
Tsubasa announces her plans to study abroad before informing Rola that she will inherit Spice Chord on the condition that she pass a series of tests.
Episode 63
The Hot Wind Blown from The Tundra
Jun 29, 2017
As S4 are each given surprise one-day jobs for their program, Lily decides to becomes a guide for a fan tour to Suzukaze Plateau in leau of resting at her summer retreat.
Episode 64
Wish Upon a Star
Jul 6, 2017
With Tanabata approaching, Elza has Rei come out of retirement and resume model work as Shooting Star.
Episode 65
Let's ride Venus Wave
Jul 20, 2017
As Rola begins her duties as Spice Chord's muse and works on her own Premium Rare Dress, she and Yume are invited to be part of a Venus Wave event to increase their Aikatsu Ranking.
Episode 66
Sending a Yell
Jul 27, 2017
While preparing for her own performance, Yume comes across a young girl named Saya whose friends keep arguing over which idol is better.
Episode 67
It's Summer! It's the Pool! Let's Treasure Hunt
Aug 3, 2017
Yuzu decides to hold a treasure hunt at the pool for her Shiny Smile brand's Premium Rare Dress premiere.
Episode 68
Venus Ark's Sca~ry Rumors
Aug 10, 2017
Venus Ark prepares to hold its proficiency tests, with Kirara sharing a rumor of a forbidden room on the ship where those who fail their tests are locked away.
Episode 69
Spread out, Aikatsu "WA"!
Aug 17, 2017
While en route to preparations for the newest Aikatsu Island event, Yume, Rola, and Mahiru come across three idols from Starlight Academy; Akari Ozora, Sumire Hikami, and Hinaki Shinjō.
Episode 70
Jungle Activity!
Aug 24, 2017
While kayaking in the sea, Yume, Rola, and Koharu get lost in a fog storm and end up on a remote island, where they come across Ichigo Hoshimiya.
Episode 71
Farewell, Koharu-chan!?
Aug 31, 2017
Elza tells Koharu that the Venus Ark will be leaving Japan for a tour. Meanwhile, Yume, Rola, and Mahiru, whose exchange programmes aboard the Venus Ark are scheduled to end as a result, assume that they will end up having to part ways with Koharu once again, becoming worried when they can't find her aboard the ship before it departs.
Episode 72
Our Number One Star
Sep 7, 2017
Koharu wants to help Yume design some dresses for Berry Parfait, but can't find the confidence to ask her.
Episode 73
The Rainbow Dress
Sep 14, 2017
Noticing something off between Yume and Koharu, the other girls learn that they had gotten into an argument about Koharu's dress designs.
Episode 74
Fluffy☆Friends
Sep 21, 2017
Yume and Koharu are scheduled to appear on a children's animal show hosted by Ako, where Kirara also brings her pet sheep, Caroline.
Episode 75
Kasumi Family Day Off
Sep 28, 2017
Learning that her parents are finally getting some time off work, Mahiru returns home with Yozora and Asahi to spend some quality family time together.
Episode 76
Fairy Idol Aria Futaba
Oct 5, 2017
The girls learn that Hime is passing on her My Little Heart brand to Aria Futaba, an idol who is popular in Finland.
Episode 77
Put In The Language of Flowers
Oct 12, 2017
As the Venus Ark returns to Japan, Aria searches around the ship with Yume and Kirara for some surprising Aikatsu.
Episode 78
Welcome Perfect Mother!
Oct 19, 2017
Elza meets her mother, Yukie Grace Forte. Elza has aspired to be like her since her childhood: she was beautiful, shined as brightly as the sun, the world's top idol.
Episode 79
Halloween Surprise
Oct 26, 2017
A Halloween night will be held at Four Star Academy, and the idols of Venus Ark will also participate, making it more hectic than usual. Yume and Koharu make a short plan in order to surprise everyone.
Episode 80
Rei Kizaki's Vow!
Nov 2, 2017
Rei makes a vow to obtain the last set of Star Wings, so that Elza's dream can come true. Putting her confidence and determination forward, she debuts her brand Royal Sword, gaining the final set of star wings, so that the Sun Dress can finally emerge; However, the Sun Dress appears randomly before one of the nine who have obtained star wings.
Episode 81
Looking For a Great S
Nov 9, 2017
The students of Yottsuboshi Academy begin the shooting for the television program that they are appearing in. Under a time limit, it was supposed to be a show where one has to find a name card starting with letter "S". An intense punishment game called "Coochy-Coo" awaits those who fail to do so.
Episode 82
Aikatsu in Love♪
Nov 16, 2017
Yume is in good spirit to obtain the Sun Premium Dress. Appearing to be resuming her Aikatsu! activities immediately after resting, Yume pushes herself a bit too far and realizes that she no longer has an answer for what her favorite thing about Aikatsu! is. Among these events, she and Aria has been invited to co-star with Hime Shiratori on Hime's program.
Episode 83
Lily and the Prince
Nov 23, 2017
Finally, the school festival has arrived to Four Star Academy, This year, the main focus of Four Star's school festival will be the play starring the members of S4. The chosen play is "Romeo and Juliet", rewritten for the students of Four Star. Venus Ark students Rei Kizaki and Kirara Hanazono appear in order to enjoy their time. Lillie also finds a prince.
Episode 84
Dream Together
Nov 30, 2017
In order to move up on the Aikatsu Ranking, Kirara has decided to enter the unit event that has extremely high points with Ako.
Episode 85
Passing on the Radiance
Dec 7, 2017
For the sake of moving up Aikatsu! Ranking, for all the upcoming stages, it will be extremely important to acquire the points from performances.
Episode 86
Nothing but the Number of Tears
Dec 14, 2017
In order to move up the Aikatsu! Ranking Rola decides to enter a competition worth a lot of points so that she will have a chance of making the top four.
Episode 87
Thank You♪ Merry Christmas!
Dec 21, 2017
S4 receive a request to produce this years Christmas festival. Yume and the others come up with ideas for the festival, which include erecting a giant Christmas tree in the town shopping district and performing a show for the shoppers.
Episode 88
It's New Year All Members Gathered!
Jan 4, 2018
S4 realize they have a lot of work to do now that its new year but Yuzu decides to take it on all by herself. After taking on a full day of live program shoots, Yuzu succumbs to the strain and collapses.
Episode 89
Diary of the Stars
Jan 11, 2018
Elza, Rei and Kirara talk about the past year and how everyone has grown from their experiences. Yume and Aria hold a concert before everyone gathers at Venus Arc to watch the new year fireworks.
Episode 90
Venus Crisis!
Jan 18, 2018
Elza announces that she will be closing Venus Arc after the Aikastsu! Ranking final Tournament, leaving all the idols in distress.
Episode 91
Hustle Idol Training
Jan 25, 2018
Kirara suggests to Aria that she should enter an upcoming competition to raise her Aikatsu! Ranking, saying she needs to get serious if she wants to win.
Episode 92
Our Episode Solo
Feb 1, 2018
The top four candidates for the Aikatsu! Ranking are announced. Yume and Mahiru from Four Star Academy, and Elza and Rei from Venus Arc.
Episode 93
The Sword of Light
Feb 8, 2018
Rei still tries to convince Elza to reconsider closing Venus Arc but to no avail. All the other idols aboard the Arc begin talking of leaving after the way Elza has treated them but Rei tries to convince them to stay.
Episode 94
Mahiru's Radiance
Feb 15, 2018
Mahiru becomes hesitant about facing Elza in the tournament. Yume and the others manage to convince her that she has her own radiance that she can shine with.
Episode 95
The Lonely Sun
Feb 22, 2018
Elza announces that she will quit being an idol once she wins the Aikatsu! Ranking Tournament. Rei decides she's had enough of Elza's selfishness. Unable to convince her to change her mind, Rei goes to Yume for help.
Episode 96
Shining Together!
Mar 1, 2018
With the support of her friends, Yume prepares to take the stage, but before doing so she speaks to Elza. Elza is firm in her belief that a perfect idol can only shine alone, but Yume feels that an idol shines with the power of everyone who supports her and vows to prove it.
Episode 97
Bon Bon Voyage!
Mar 8, 2018
As Yume gets used to her new world wide fame, Elza is still adamant she will close Venus Ark. However the other idols refuse to leave and after some protesting, Elza realizes what she needs to do next.
Episode 98
Yuzu and Lily
Mar 15, 2018
As another school year draws to a close, everyone prepares for the upcoming S4 selection. However, Rola announces that she won't be participating this year as she is planning on moving to England to join a music producer called Black Star.
Episode 99
The Things We Both Forgot
Mar 22, 2018
As the new school year begins, Rola prepares to leave Four star Academy for England. Koharu, Ako and Mahiru help Rola pack her belongings up when Yume shows up. As they discuss the future, both Yume an Rola feel they are forgetting something.
Episode 100
To the Unseen Future
Mar 29, 2018
Yume, Rola, Koharu, Mahiru and Ako decide to spend their final vacation together having fun before Rola leaves for England. The girls spend a night in the country and are joined by Yuzu and Lillie.