good plot, a lot of place for choices determinating O8O's story. i like her backstory. she's totally focused on succes and cold but not evil person. but her roommate... the hall is not place for her...
very good artstyle as always
interesting characters. 080 is my favourite
+expanding lore of Arena.
good job
edit: *spoiler*
080 is character form Arena Circus, right? and she wears purple-yellow clothes, right?