Chikushi Centipede-Cutter

Momoyo Himemushi's Last Word (a Touhou LW original). She recreates a weapon closely connected with herself, which is an arrow yet also a sword. An oomukade (giant centipede) greater youkai was defeated by a legendary hero in the past. This was accomplished with an arrow imbued with the blessing of the Hachiman deity. However, the finishing blow was dealt with a sword, just like in the legend where the nue was exterminated.

But how did this hero obtain a weapon capable of defeating a greater youkai? It was bestowed to him by the dragons of the Dragon Palace, who were under attack by the oomukade. Of course, this hero could only properly wield this legendary weapon thanks to his mighty skills. There are differing accounts as to when the Dragon Palace gave this weapon to the hero. Some tales say it was before he defeated the oomukade, and some say it was after. This is probably because he was given a weapon or a blessing before the fight and received a reward afterward. It is particularly interesting how the sword, Chikushi, and the armor, Hiraishi, said to have been gifted to the hero by the Dragon Palace, both have the kanji character for ''arrow'' in their names. This surely indicates that they were created by either embedding, reforging, or recasting the arrowhead imbued with the blessing from Hachiman. That would explain how Chikushi later became known as Mukade-Kiri, the Centipede-Cutter.

In the end, it is still unclear whether the Dragon Palace interfered before the youkai extermination or after... That place is ever mysterious.