立川信夫
The protagonist of the loli hentai series [[TS Loli Oji-san no Boukan]].  Tachikawa Nobuo (立川信夫) appears as a young girl with very long black hair in a [[hime cut]] with a [[huge ahoge]] atop her head.

Nobuo was a former 32-year-old man, but was killed by a speeding truck and reincarnated into another world.  Unfortunately he was manifested in the other world right in front of a runaway horse-drawn wagon and killed a second time.  This lead to him to have to be reincarnated a second time, but now returning to Earth.  As an apology for the situation, god fulfilled requests of his which included being reincarnated as a loli this time around.
tachikawa nobuo