Luca lost her family in the Great East Japan Earthquake causing her not to be able to speak. However, her singing voice shakes the hearts of those who listen to her. It is a hymn of compassion played by Luca and the people.
Hokuto Matsumura (松村 北斗) is a member of Japanese idol group SixTONES (pronounced "Stones"). He started acting in 2012 NTV drama Shiritsu Bakaleya Koukou. In 2025, he won Best Male Actor in a Leading Role at the 98th Kinema Junpo Best Ten Awards for his role as Takatoshi Yamazoe in Yoake no Subete (English title: All the Long Nights).