echo 'digraph {

"Koneko Toujou" -> "Kuroka" [taillabel = "Younger Sister of"]
"Issei Hyoudou" -> "Koneko Toujou" [taillabel = "In love with"]
"Kuroka" -> "Koneko Toujou" [taillabel = "Younger Sister of"]
}' | dot -Tsvg > output.svg