Now you can translate this game If the input file is BLML it will be decrypted to XML. If the input file is XML it will be encrypted to BLML. http://aluigi.org/bms/bless_online.bms
If there are archives or other files not supported, just post them here.
Actually i want find some game icons, trying make site with bless items database. Don't know, what package exactly i need. Something contains files like "bl:icon_index="250109"