Natsume Takashi is water, and the "female gangster" is fish.
Fish and water, no one can live without the other.
Fish cannot live without water; water without fish is like a pool of stagnant water without a single ripple.
This article is the sequel to "Telling Natsume Down (Natsume's Book of Friends)"
It doesn't matter if you haven't watched the first part. Watching this one directly will not affect the development of the plot.
The female gangster tried to push Natsume down, but was counterattacked (completed)
Intention: