On her first day of work at her father's small production agency, Tsumugi Takanashi was not expecting to be made the manager of the agency's new male idol group. Though shocked that her father is trusting her with such a major project so soon, Tsumugi vows to do everything she can to support the seven young boys. After seeing how well the boys work as a team, Tsumugi meets with her father and learns that her first job as manager will be to cut four boys from the group. This is because her father believes seven idols are too much to manage, and the current top group, TRIGGER, only has three members. After holding an impromptu audition, Tsumugi returns to her father and boldly declares that she refuses to cut anyone from the group, as each member has a unique allure which collectively enhances the group's appeal. She returns to the boys and they are thrilled that none of them will get to miss out on their dreams. Together they become IDOLiSH7, and prepare to take on the fiercely competitive world of idols.

First-year high school student Uka Ishimori wants a fresh start. In middle school, Uka was given the nickname Rocky by her peers, being misunderstood as having no emotions when she was actually shy and introverted. As a result, Uka was relentlessly bullied and experienced a lonely, isolated school life. Now, Uka is determined to change. During the first week of school, Uka accidentally gets drenched in lemon soda by her classmate Kai Miura—whose cool personality is the complete opposite of hers. After the incident, Uka is surprised when Kai performs small acts of kindness for her, encouraging her to gradually break out of her shell. Like a lemon soda, bubbly and exciting feelings are beginning to stir.

Madoka Kyouno is an energetic girl who is full of passion. As the proud, and only, member of the Kamogawa Girls' High School Jersey Club, she goes around helping people in need. Madoka's life is turned upside down when she is suddenly asked by a mysterious girl named Lan to pilot a robot. Motivated by her desire to protect the people and city of Kamogawa, Madoka agrees to pilot the resurrected Vox robot to fight against extraterrestrials that have come to attack Earth. (Source: VIZ Media)

Unwilling to move to a different shrine and leave her friends behind, Kanna escapes in the dead of night with her loyal bodyguard Ryuuya and confidant Uraha. Knowing their pursuers are not far behind, the three embark on a journey to locate Kanna's mother, who Kanna yearns to see after many years of separation. Amid the tensions, the trio explores the world outside the confines of the palace—serving as a tranquil yet temporary distraction from what is to come.