Еп. 23: Каору падає в тріщину під час полювання, а Луна рятує його під час сильної заметілі.

23

The snow is falling heavily, and no one is able to find any food. Kaoru decides to head out again, even though it's close to sunset, but falls down a crevasse while chasing a tobihane. When he doesn't return, Luna goes to look for him. She finds him and pulls him out of the crevasse, but the snow is falling too heavily to find their way back to the Star Hole, so they spend the night in a snow cave. Luna brings up the time Sharla found another boy's ID card in Kaoru's clothing. The boy was Louis, Kaoru's rival at pilot school. While Kaoru was piloting a ship through an asteroid field, the hull was punctured and Louis was sucked into space. Kaoru had blamed himself ever since, but Luna, remembering her father's last words, tell Kaoru that perhaps Louis was telling Kaoru to live on. (Source: Wikipedia)