Mushroomy nosebleed - Part 2

For some insight about what the hell is going on up there:
Sukiyaki - is a kind of a "hotpot" where you put whatever you want from noodles to vegetables, even meat. It is typically eaten by young couples, room mates or by poor people in Japan.

In case you don't know what matsutake is, do a research on Wikipedia, the article has a neat image attached too

First page - [link]