*UNEDITED*
The only way for them to stop this if they get 'that'. Sumire didn't want to knock out her husband like that. But she knew he would never let her go otherwise. Among the old legends she often read about before. Sumire recalled a story about an ancient seed that will cure anything. She wants to obtain it to cure those people who drank the drug. If she can make a cure with that seed, then they can counter attack. The reason why they can't do anything but hide now is because it would mean harming normal civilians.
...
When the brunette next woke up, she was no longer in the forest. A wincing pain in her head. Huh? Where is she? Sumire glanced at her surroundings. Right now she is in the bottom of the ocean. But how is she still breathing? And why is there a palace underwater?
"It looks like the sacred seed is in that palace." A voice from beside her said.