Heart, from CCCC, is the embodyment of Whole's emotions, so he's known to be very emotional, and cries very easily. He and Mind do not get along and argue over everything. Heart once shot Mind in the thraot, permanently damaging his voice box.
He was blinded after shooting Mind, and now constantly wears a blindfold. He's also sensitive to light.
His name 'Juno' came from the song Ruler Of Everything by the band Tally Hall, one of Chonny's biggest inspirations. 