[roer]

There's a Frieren [1] reference in there! https://www.ioccc.org/2025/yang2/index.html

One of the main characters is called Fern, and she almost exclusively uses the common offensive magic of Zoltraak.

[1] https://en.wikipedia.org/wiki/Frieren

[omoikane]

There are two Frieren references, the other one is https://www.ioccc.org/2025/yang1/index.html