The Cold Equation is a reference to a sci-fi short story by Tom Goodwin in 1954.
An Intense Heat Equation would be something of the opposite. 35. Intense Heat Equation.

Red Spider Lilies, Cluster Amaryillis, Higanbana, however you like to call it.
It is known as the Japanese flower of Death. 34. Red Spider Lilies Bloom in the Graveyard.

Hydrangeas are typically blue, but can turn red based on soil pH, specifically acidic soil.
Blood is acidic, so there are stories of hydrangeas turning red from dead bodies being buried under them.
33. Hydrangeas Dyed Blood Red.

The next three chapters are references to flowers.
This is a reference to the first line of a Japanese poem by a poet called Kaiji Motojirō.
32. Dead Bodies Are Buried Under Cherry Blossoms.

Can you imagine if things in real life could get nerfed? 31. Nerf.

For all the weird and wacky things in this series, it also has its surprisingly somber moments.
The chapter title looks like this deliberately, like an old signboard with bits and pieces missing from it. 1 345th Year of the Gala Era – The Mus of re Weapons.

Some songs are happy, some songs are sad. 30. Diva.

This one is something I’ve thought of before myself. Although, not quite with the same results in mind. 29. Qualia.

Was it real or was it all just an imagination of the mind? Who can tell? 28. Euthanasia.

How does this work? Magic of course, after all, it is a 27. Wizard.