Both yesterday and today, PassCode held an online autograph sign event. Yesterday, Nao and Kaede delivered their fansign while today Yuna and Hinako did theirs. I found Nao and Kaede's more fun. They quite extroverted and fun; while Yuna is a shy girl, Hinako is more outgoing. The interaction between them was interesting to watch; but I enjoyed Nao and Kaede's more.