The next day, Tenryuu was sunk.

Not in battle,

Nor self-inflicted.

She was simply sunk...

While walking on the water, without being injured.

Several months later, Nachi, Jun'you, Kaga and Tatsuta all were sunk in the same way.

Kaga, the last one to got sunk, after regaining her memory, was trying to keep the other members from getting sunk as much as possible by keeping them away from the waters.

But suddenly, one day, Kaga, as if she was possessed by something, started to walk on the water surface.

Then slowly sinking, as if falling to sleep.