第 1 季 共 13 集
播出时间：2013年4月5日
第 1 集 Opus 1: Rainbow Colored Flower Fuse
播出时间：2013年4月5日
With Yotaka gone, Gareki and Tsubame are left to pick up the pieces and make sense of what has happened.
第 2 集 Opus 2: Fortune Cat
播出时间：2013年4月12日
Now that Nai knows Karoku's bracelet has something to do with Circus, he goes in search of answers, but he finds that his earlier brush with trouble is far from over.
第 3 集 Opus 3: Illusory Picnic
播出时间：2013年4月19日
While under Circus's protection, a curious fact comes to light regarding Nai's true identity. With that clue in hand, Nai, Gareki, and several members of Circus pay a visit to where they believe Nai came from.
第 4 集 Opus 4: Evening Swallow
播出时间：2013年4月26日
After their trip to Rainbow Forest, Gareki asks to drop by Karasuna, where they run into an old acquaintance of his. From this enounter, Nai and Yogi learn more about Gareki's past.
第 5 集 Opus 5: Clown's Prescription
播出时间：2013年5月2日
Yotaka has become a Varuga. Meanwhile Gareki feels very conflicted about his past with Yotaka and Tsubame.
第 6 集 Opus 6: Wing of Sunrise
播出时间：2013年5月9日
With Yotaka gone, Gareki and Tsubame are left to pick up the pieces and make sense of what has happened.
第 7 集 Opus 7: Three Knights And
播出时间：2013年5月16日
Team Two is helping Team One put on their Circus parade and show, and Yogi gets Nai and Gareki to join the parade in an effort to cheer up Gareki. But a malfunctioning Team One rabbit throws a wrench into their festivities.
第 8 集 Opus 8: Silver Box
播出时间：2013年5月23日
Yogi and Tsukumo are sent on a mission to Rinole, the City of Ice, to follow-up an investigation started by Team One. Nai and Gareki are sent along with them, and the four of them find more than they bargained for.
第 9 集 Opus 9: Blue Rose
播出时间：2013年5月30日
Yogi going berserk sends the bad guys running, but when Nai senses that something is wrong with him, Tsukumo turns back alone, only to run into trouble herself.
第 10 集 Opus 10: Beastmaster's Tears
播出时间：2013年6月6日
With Yogi and Tsukumo out of commission, Nai and Gareki are put into the care of Airship One. Meanwhile Gareki learns more about special powers.
第 11 集 Opus 11: Ice-Cream Parade
播出时间：2013年6月13日
Hirato and Tsukumo take a meeting with the CEO of the Lindain Group in Vantnum while the rest of the gang gets the day off. The CEO has disturbing news, but a boy they run into in the city has even more intriguing information.
第 12 集 Opus 12: The Rainbow Promise
播出时间：2013年6月20日
Nai is determined to go to the Kafka facility to rescue Karoku. Soon the Circus decides to use this as an excuse to raid the facility.
第 13 集 Opus 13: Karneval
播出时间：2013年6月27日
As Nai and Gareki make their way towards the mysterious rainbow to see if Karoku is there, the rest of Circus work to wrap up what they can of the raid on the Kafka facility.
