Desert Island Survival: Start with a Snow

People were on a deserted island, and just after blowing up the plane, they lost contact.
The book is also known as "Superman High School Students Can...Bah, Even on a Desert Island"
This is a story that begins with Yukinoshita Yukino surviving in the wilderness.
Megumi Kato: Brother, this is a wreath I made...
Yukino Yukino: Jun-san, the scallops are already baked, do you want to eat them?
Sora Silver: Brother, I found this (a shiny gem) in the river!Does it look good?
Kasumi Hill: …
Yuihama Yui: …
Megumi Kato: Brother (his eyes gradually collapse)...
I'm going to sharpen the kitchen knife for cooking...