Touhou Doujin: Grimoire of Dawitsu

The Brain of the Moon, Eirin Yagokoro

Eirin Yagokoro is a lunarian doctor, and one of the most experienced of her kind. She is said to be the oldest lunarian that is still alive, but this is hard to prove without going up there to find out. And if there's all those rabbits up there... no, I'm not gonna try and find out. She may as well be to us, only two non-rabbit lunarians live in Gensokyo anyway...

She's highly skilled at making any medicine for any purpose, be that for infertility, norovirus, , or scabies, she can make it. She's a truly gifted doctor... it's a real shame I can rip off her years of experience so easily, honestly speaking.

Personality

Eirin is extremely hard to get to know. All that can be said is she's way smarter than any earthlings, and even eternal life forms like Kaguya and Fujiwara no Mokou have nothing on her intelligence. She's truly the smartest woman around, and she shows it more than she brags about it.

I went to Eientei to visit her and get a... certain prescription from her. After we finished talking about my... ailment, I decided to get to know her a little better. She seems to have a perfect memory of all the years she's spent alive, not one memory slightly skewed- at least, that was what her simple, confident telling of the events indicated. She doesn't seem senile in the least... I wonder, is this what ageing would be like without the slow deterioration of the mind? It seems as if, in terms of the mind, she's close, if not, actually there, to perfection. She's far closer to enlightenment than residents of Bhava-Agra who supposedly have attained such a thing. Maybe Bhava-Agra is an earthling-only zone or something.

Either way, she's a genius who has a calm, balanced, and overall considerate personality, which makes sense considering how old she is. She must know every in and out of people's tendencies and knows how best to treat certain personalities accordingly. She's an enigmatic woman, I wonder what secrets she's contained over the years...

Notes on Mimicry

Fortunately, she's not as close to perfection with Danmaku. But this makes sense- she's a doctor, by trade she heals people, rather than attack them. Not that she's meant to be taken lightly in this sense- she's still scary as hell to fight, but well worth the observation.

She tends to use familiars, slow, dense barrages and stationary walls of Danmaku to pin the opponent down. This is a unique, and quite unexpected use of Danmaku when you consider almost everyone else's attack style... it's like stationary Danmaku just isn't a concept to them. But when Eirin uses it, restricts your movement, and hits you with a simple barrage, one can't help but think 'Why haven't I thought of that?'. In terms of tactics, she's truly on another level to most of us.

But fortunately, as long as you can summon familiars, you can rip off this innovative style of attack and make it anything but innovative- the skill is actually in forming the unmoving bullets. You see, when one creates Danmaku, they are projecting energy. And one of the most stable (and hence forms of energy tend towards converting to it) forms of energy in kinetic energy. So getting the Danmaku to, well, stop having kinetic energy is hard- see 'Cirno' to know what I'm talking about. Except where Cirno drains everything from the bullet- heat, chemical, light, and kinetic, Eirin merely does the latter, and this requires an incredible mind.

But I'm in possession of such a mind, with modesty also, and with practice, you can also get the hang of it. From what I hear, humans can actually imitate Eirin better than Youkai... I wonder why that is? Perhaps humans are inextricably linked with the moon in a way us Youkai may never understand... all I can say is they've been to the moon without any supernatural powers whatsoever, just can-do attitude and technology, something us Youkai can't boast about at all. Yutaka, have you anything to say?

Typist's notes: I just noticed something. My boss takes medication prescribed to him by Eirin. How didn't I notice this before? I wonder what it's for...

I'd like some medicine myself, my fingers are aching like crazy... Typewriter keys are so hard to press compared to computer keys...