Lunkli

"The brightly shining firefly
Disappears into the dark
So fleeting and so meaningless,
Just like my yearning heart"

Profile picture is Igarashi from A Lazy Guy Woke Up As a Girl One Morning (Kobayashi Kina) with a background from AIR. (Key / Visual Arts; edited by me)
Banner is a photograph of Sanjūsangen-dō. (Taken and edited by me)

Also known as Koyiamaqi.