Souma, Kuukai

相馬空海

He is the upbeat and energetic former Jack's Chair, one year older than Amu. As the Soccer Club captain, he is athletic with good reflexes. He has graduated, which is why he was replaced.
Once, a student in the school magazine mistook him and Amu for a couple after getting a picture of him holding Amu when she lost her strength coming out of her Character Change. Saaya seems to have a crush on him, as she was furious when she saw the picture of him with Amu.
Using the power of the Humpty Lock, he and Daichi managed a Character Transformation once, forming "Sky Jack." During a Character Change with Kukai, Daichi says the words "Kick, Stack, Trap and Shoot!"
At the end of the school year, Kukai graduates and goes on to middle school. However, Kukai returns to visit the Guardians from time to time.
He and Utau become good friends in both the anime and manga, leading to a suspicious Yaya.

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