溺れた友達を助けるために川へ飛び込み、帰らぬ人(水死)となっていたこと

However, the moment they passed the immense darkness of the Coalsack, Campanella cried, 'Ah, there's my mother!' and suddenly vanished. When Giovanni woke up crying, he was back on the dark hill. In the river below, Campanella had dived into the water to save a drowning classmate and never returned. In deep sorrow, Giovanni renewed his vow to find true happiness.