Jun Fukushima is known for I Want to Eat Your Pancreas (2018), Science Fell in Love, So I Tried to Prove It (2020) and Chicchana yuki tsukai Shugâ (2001).
Kazuma's party is suddenly alerted by an outrageous letter delivered by Yunyun. The letter requested that they come to the Crimson Demon Clan's village, that is facing a threat that could mean it's ending.
A high school student discovers one of his classmates, Sakura Yamauchi, is suffering from a terminal illness. This secret brings the two together, as she lives out her final moments.