After unconcernedly nodding at Alice who turned to me with
a suspicious look, I raised my right hand and shouted out at a
restrained volume.

“System call!”

The space resources drained by the wall climbing had
apparently been recovering as my extended fingers faintly
glowed violet. Holding back the impulse to rush, I carefully
chanted out the length of the command.

“Generate umbra element. Adhere possession. Object ID,
WLSS703. Discharge.”

That all came from memory. Though it was nothing more than
a guess, the string, «WLSS», in the first half of the ID might be
short for «Double-edged, Long Sword, Single-hand»6 while the
numbers in the latter half could be the serial number for
swords in that category. My black sword’s ID was
«WLSS102382», so there might mean that only several
hundreds of single-handed longswords existed back when the
Blue Rose Sword was generated and that particular number had
went beyond a hundred thousand two years ago…

Even as I brooded over such things, an umbra element bead
separated from my finger tip as it breezily floated downwards
and burst apart, vanishing with a sparkly noise the moment it
touched the floor a short distance away.

“…Downstairs, huh.”

(Alicization Dividing, 229)