Song of the Breaking Cocoon

Even after the apocalypse, the world remains prosperous.

But beneath that prosperity, the waters churn. One careless mistake can bring utter ruin.

She is a vicious shark who helps the wicked. With no goals and no understanding of feelings, she meets the right person and only then realizes she's just an ordinary person, though she can never be ordinary again.

She helps the wicked, and she is also the one who turns the tide.

Karma? The retribution that should come never does.

Only much later does she understand: this world has cause and effect, but there is no perfectly targeted retribution. “Retribution” has no humanity and makes no distinction between good and evil. It strikes indiscriminately. Only the law can deliver retribution to the right person, and only laws made by good people can ensure that cause and effect are truly answered under the law.

Unfortunately, there are always people who can stand above the rules, herself included.

But she no longer wants to be a vicious shark. She only wants to do what little she can to protect humanity's last ark, because everything she loves is aboard it.