i dont know who or what Sailor moon is but my first thought was a boys name not girls.
i could see it growing on me though.
But anyway ive learnt if you like uncommon names, they are uncommon for a reason and people will not always like it (cause if they did it would be a top 10 name )
i did an online poll when pg with ds3 and got lots of comments on the name we picked (Ryker) but we still named him that, absolutley love it and it just suits him. ( we were told it reminded them of someone Riker in star trek and a prision in NY called Riker island both of which we had never heard of but didnt deter us)