After his mother remarries into the Smith family, Kane silently endures the cruelty of his stepbrother, Justin, harboring a secret crush and even consenting to be his hidden plaything. However, Justin secretly stays with their adopted sister, Daisy, and continually abuses Kane based on Daisy's malicious frame-ups. Heartbroken, Kane cuts all ties and leaves for Paris to study. Before departing, he mails back all of Justin's gifts along with a voice recording that exposes Daisy's lies. Overcome with remorse after learning the truth, Justin casts Daisy out and rushes to Paris, begging for forgiveness. But Kane has already healed from his depression under the gentle care of his childhood friend, Arthur. Facing Justin's desperate pleas, Kane coldly rejects him. Ultimately, Justin becomes a pilot to honor an old promise to show Kane the sea of clouds, only to die in a training crash, while the scheming Daisy ends up penniless, begging on the streets.
