Mokou
Fujiwara no Mokou (藤原 妹紅) was formerly an ordinary human, but she became an immortal being after drinking the Hourai Elixir about 1300 years ago. Now she is never able to die, though she still feels the pain of injuries as normal. She's considered to be very powerful, given her long life, the power she earned through her life, and her immortal status since she can keep fighting until she can no longer stand the pain.
Personality[]
Mokou smoking
Perhaps due to being ostracized for so long, Mokou is a loner by nature and chooses not to socialize with humans or youkai. She escorts lost humans she finds within the Bamboo Forest of the Lost, giving herself a job similar to that of a bamboo forest guide, and even then after escorting between Human Village and Eientei, she departs without saying a word. Nevertheless, to those whom she's acquainted with, she speaks bluntly and with lively personality. In Imperishable Night's extra stage, for example, she was easily roused and goes on a rant about how annoying Kaguya is. Not much else is known about her as she doesn't really talk much to anyone.
Her style can be described as masculine - she wears a dress shirt with suspenders and karusan (a type of hakama typically worn by men) tied at the waist, rather than above the waist as is standard for women's hakama. Although she used feminine speech patterns in Imperishable Night, beginning in Urban Legend in Limbo, her speech is typically masculine as well.
She undertakes the duty of escorting people in the Bamboo Forest of the Lost. Although this may allow her a wider opportunity to socialize with other people, she still remains very reticent about herself. For example, when asked about her past, she doesn't answer with anything other than "I'm an ordinary health maniac who runs a yakitori stand" (it is unclear whether she truly does run a yakitori stand). However, she seems to happily listen to others' talking. Thus, even if someone doesn't lose one's way, it would be possible for her to be enlivened by a conversation.
She presently seems to be very content with her life contrary to being commonly thought of having a pessimistic lifestyle. With an unaging, undying body, she and Kaguya Houraisan kill each other every day, and the text of Imperishable Night even emphasizes this with the line "and she is alive to enjoy it, how magnificent!
Bad blood with Kaguya[]
Mokou has despised Kaguya Houraisan for reasons mentioned in her backstory. When she surprisingly found Kaguya in Gensokyo after so many years of exile, and so close to where she lived, she was ecstatic that Kaguya was in the same mess she was. The two spent about 300 years slaughtering each other on a daily basis; Mokou described those days as "the joys of killing each other over and over" in Cage in Lunatic Runagate Chapter 4. Mokou's official profile also describes those days as "wonderful days", but she's grown rather annoyed at Kaguya's persistent attempts of trying to kill her, assassins or otherwise.