STARISH is threatening to disband, which prompts Haruka to write a song that will unite them all.

As STARISH prepares for the award show, Cecil has difficulties with the choreography. Syo offers assistance.

The emotions and hoeps of STARISH, QUARTET NIGHT, and HEAVENS are illuminated by a morning sun rising in a clear sky. As Haruka prays for similar things, the Decisive Concert is about to begin.

After QUARTET NIGHT's masterful performance, STARISH rushes onto the stage they've dreamed of performing on to challenge their rivals and deliver their voices to the world. Together the idol groups STARISH and QUARTET NIGHT have started a revolution of love, but an unexpected development waits for them in the final moments of the concert...

HEAVENS think that the competition is in the bag. Haruka must make a life altering decision.

After a successful debut, STARISH is now on the fast track. Later the President introduces STARISH to Pioneering Princes to teach them what professionals are like.

Otoya improvement has impressed the rest of the team, but his random disappearance leads some members to believe he is attending voice training classes. Later, when Cecil is asked to do an impression on a variety show, Otoya is concerned about this pop culture knowledge.

Syo’s lands a role in the new Prince of Fighting special with this idol, Ryuya Hyuga. With a successful cd release and job offers members of ST☆RISH believe they are true idols, but Saotome informs them that they are not yet idols unless they win the ultimate award.

QUARTET NIGHT and HEAVENS have finished their own brilliant performances, which leaves only STARISH. Will their performance match the passion of the other two groups? Who will be chosen to perform as the Triple S opening artist?

The third duo of the Duet Project are Cecil of STARISH and Shion of HEAVENS. Trying to follow up on Tokiya and Syo's success, Cecil aggressively approaches the project, but Shion closes off his heart more and more as though in response to Cecil's passion.

The members of STARISH and HEAVENS are shocked to learn they will be singing duets with members from the other group to prepare for the decisive concert. Meanwhile, QUARTET NIGHT appears to be experiencing some discord of its own.

The “Uta Pri Award” has finally been announced. Their joy is short-lived as the other nominated idol group HEAVENS are given Haruka’s songs to sing. When the presidents of both agencies audaciously bet the dissolution of their groups on the award, STARISH is elated.

Cecil disappears from the campsite. However, Haruka, who felt an infinite amount of potential in their seven-person harmony, begins composing a new song for the seven-member STARISH. Believing Cecil will return, the members of STARISH attempt to convince Shining, who tells them to give up on Cecil.

Haruka meets a prince in her dreams, but was it really just a dream?

When Shining acknowledges STARISH's revolution when they spur QUARTET NIGHT into action, he allows them to enter the Triple S opening artist screening concert. Viewing STARISH as their greatest rivals, QUARTET NIGHT makes a request to Haruka in preparation for the concert.

The Cross-Unit Projects concludes with great success. Though the international focus on them is growing, STARISH still hasn't received an answer regarding whether or not they'll be entered. When they hear the high quality of QUARTET NIGHT's new song, the anxiety they feel without Haruka peaks. However, the time they've spent together since the birth of STARISH leads them to a certain conclusion.

Their summer overnight trip over, Haruka and her friends find the deadline to select their partners for the graduation audition waiting for them. However, the more Haruka learns about their earnest feelings, the less she is able to choose a partner. The situation takes a turn for the worse, and the atmosphere at school grows increasingly awkward...

Everyone in the school is talking about how Haruka has been picked by six other people to be their preferred partner in the final assessment, but the stress is eating away at her.

Thanks to being raised since she was a child by her music-loving grandmother, Haruka is confident in her ability to play the piano. However, for some reason, she is unable to play in class. Seeing Haruka shrink in response to her classmates' slanderous words and become increasingly depressed, Masato takes action.

Triggered by Masato's actions, his roommate and childhood friend Ren begins making passes at Haruka. However, Ren makes a habit of neglecting the academy's assignments. When Haruka learns Ren has received an ultimatum from the academy and may even be expelled, she begs him to turn in his assignment on time, but...?

Haruka has gradually become accustomed to life at the academy. Her grades begin to rise, and surrounded by friends, every day shines. However, she continues to carry doubt in the corner of her heart... Haruka finally discovers Tokiya's grave secret.

Working and going to school takes its toll on Tokiya, and he winds up in the hospital.

Aiming to pass the Shining Agency New Talent Discovery Audition held at graduation, the academy student's first assignment is the recording test. Unfortunately, Haruka, who is unable to write sheet music, is paired up with Otoya, who has no experience writing lyrics. Will the two of them be able to pass the assignment...?!

Syo admires the teacher of the S Class and currently active idol Hyuga Ryuya. News of an amateur audition to co-star with him comes flying into the academy. However, due to Syo's fatal weakness, his odds of getting the part seem hopeless. When Haruka and her friends discover this, they formulate a plan to help Syo overcome his weakness.

The principal of the academy cuts Haruka out of STARISH's debut, saying that she is not worthy to write their songs. Haruka visits her grandmother's house in the country to do some soul-searching.

When QUARTET NIGHT is chosen to perform as the Triple S Opening Artist, they decline the opportunity after STARISH and HEAVENS give equally compelling performances. Raging Otori and Shining Saotome propose another musical showdown to determine the opening artist between the three groups in which all three of them must sing songs written by Haruka! Who will win the decisive concert and the honor of performing at the Triple S?

The top starters of the Duet Project are Tokiya of STARISH and Eiji of HEAVENS. Tokiya and Haruka approach their unknown rival with nervousness, but surprisingly they're met by the voice of an angel...

The second group of the Duet Project is Syo of STARISH and Yamato of HEAVENS. Syo is excited to sing a duet with Hyuga Ryuya's younger brother, but a powerful rivalry with his older brother surges through Yamato's heart.

A summer overnight trip on the principal's private island in the South. Her classmates excitedly discuss the graduation audition, but still unable to close the gap between herself and Tokiya, Haruka's expression is gloomy. A strange young man appears before Haruka. What is the message he wants to convey...?

In the suburbs rich with greenery sprawls the massive performing arts school Saotome Academy. In order to grab ahold of the light leading to show business, a girl walks through the academy's gates... Her name is Nanami Haruka. Inspired to become a composer by the popular idol HAYATO, the story of her numerous trials and beautiful princes of music is about to begin...!

Paparazzi have discovered that Tokiya is really Hayato, and infiltrate the school.

The fourth duo of the Duet Project are Ren of STARISH and Van of HEAVENS who are also slated to play rivals in a TV drama. When Van begins aggressively pursuing Haruka, Ren heads straight into battle with his own passionate feelings hidden in his heart.