His wife, Honoka, loves hot springs and is aiming to become a hot spring blogger. The couple had planned to go to a hot spring this coming Sunday, but she had to suddenly call up for work, so she asked her younger brother, Yuzuru, to go with them. Honoka was happy to accept, and after they left for the trip, she sent him photos of the hot springs, the rooms, and the sumptuous food on every occasion. That night, he called his wife, wanting to hear her voice, but he seemed a little depressed, which worried him. Then, the last photo she sent him revealed an unbelievable reality...