Because SAO mobile games at the time collabed with Persona 5, with Yuuki donning Futaba's costume as seen here. However, this was when "Persona curse" (gacha games collabing with Persona games, usually the fifth game, would ended up going EoS) was still going strong, so Memory Defrag would later got the axe (The other game, Integral Factor, still exists, thus escaping this curse).
Okina, Toyosatomimi, and Ebisu... based on the other pictures in this set, they're linked by hair color (black and dark brown), so what are three blondies doing here?
Okina, Toyosatomimi, and Ebisu... based on the other pictures in this set, they're linked by hair color (black and dark brown), so what are three blondies doing here?
Most likely means the author sees them as light browns/off-colour whites rather than blondes. I can see it for Miko, I guess - her yellow's a lot less saturated than most blonde 2hus - and her and Okina's hair are noticably a subgroup of their own when in blonde hair groups, but Eika I would have put with the grey-hairs.