Season 1

The six who passed the audition start living together, aiming for their official debut. Everyone tries to get along with each other to ease their tension, but there is one person who refuses to get along with them. The atmosphere is awful. Lessons are full of mistakes, and the unit doesn't come together. Meanwhile, a stern notice is issued by the production company...

Rihito stubbornly rejects the other members and becomes isolated. Mahiro, who has a strong sense of responsibility, tries his best to mediate between them, but to no avail. Memories of a rainy day flash through his mind. A distorted afterimage makes him strongly aware of "that guy." The same scent, emotions that should have been suppressed. Just before the final lesson evaluation test, something strange happens to Rihito...

The pre-debut is finally decided, and Anthos and the others head to the location for the music video shoot. Amidst the excited voices, Chise is alone, looking at "him" with a gloomy face. The color of her heart is reflected only in her eyes - the production company's cruel verdict causes the complex colors to eat away at Anthos. And then, one more person experiences a new abnormality...

The voices of the members congratulate Kaoru for her blossoming. Impatience, jealousy, anxiety, irritation - their true feelings are revealed because they are serious. Some have blossomed, and some have not. Mixed with their hidden pasts, the gap that was half filled becomes deeper again. Is it a coincidence or a destiny? Resonating with the clashing confessions, new buds begin to tremble.

Finally, Anthos has landed a big TV job. The Idol Competition Sports Day will allow them to perform alongside famous idols, and is the perfect chance for these budding guys to make a name for themselves. Anthos is enthusiastic, but there are voices that mock them and call them "cyborgs." The shadow of the hyenas that prey on the industry is creeping up on them...

The long-awaited release event and public press conference were held. It was supposed to be a grand stage of joy and excitement. A gossip reporter criticizes Anthos's body modification surgery. Mahiro's secret is revealed, and the members are shaken. Their blossoming...tears them apart, giving rise to frustration and rampage...

Mahiro and Yota see off the blossoming members as they head off to promote their new song. Left behind in the dorm, their hearts sink. It's painful to see them acting strong out of concern for their friends. Then they receive something from the production company. It makes them happy, even if just for a moment...

The dark side of Anthos becomes news, and curious eyes turn to them. Their secret of being from an orphanage is revealed, and to make matters worse, Yota is forced to suspend his activities due to an aggravation of his injury. What is the answer he comes up with in this corner? During a fan meeting with only the five of them, a small shadow takes a step forward.

Mahiro and Yota see off the blossoming members as they head off to promote their new song. Left behind in the dorm, their hearts sink. It's painful to see them acting strong out of concern for their friends. Then they receive something from the production company. It makes them happy, even if just for a moment...

Thanks to Anthos' efforts, public opinion of him has begun to change little by little, and Yota has blossomed and regained his usual energy. Meanwhile, Mahiro is the only one who has yet to blossom. He is depressed, and keeps getting NGs even during location shoots. Ryouga is worried. Mahiro rejects him. The promise they once made with "that guy" ties the two together and binds them...