A work jointly commissioned by Tatsuya Fujimoto and Nanako Sugiura. Premiered on November 27, 2022, by Yumiko Fukao and Nanako Sugiura (Studio Berceau).

The "Battle of Insects" depicts grasshoppers, mantises, and rhinoceros beetles engaging in futile battles... well, that's true, but the concept is that "battle" is, after all, merely a dance. Of the four movements, the first three are nearly atonal and all in 3/4 time. The fourth movement, a short movement of less than a minute, is tonal and in 4/4 time, concluding with a beautiful piece titled "A Wish for Peaceful Days (Peaceful Days Do Not Last Long)".

Grasshopper

The "Grasshopper" movement primarily features superimposed fourths, creating a sense of a chase.

Mantis

The "Mantis" movement was the most well-received by performers. It builds up with a slightly fast tempo, pursuing its own kind of "coolness." If playing strictly according to the score feels too subdued, a few unwritten accents may be added to evoke a sense of exhilaration.

Rhinoceros Beetle

The "Rhinoceros Beetle" movement is majestic, yet it carries a certain frustration, as if unable to break through. A "mysterious" melody sung over a C# bass in the middle section loses its mystery when sung over a D in the subsequent passage.

A Wish for Peaceful Days

The final movement, "A Wish for Peaceful Days," concludes with a purification of the heart and a yearning for peace.