I joined JP during this event, I scouted and never got Chisato, I waited for EN to come, never got chisato either, but im desperate and I really wanted Chisa's white day card, so I bought a whole new reroll acc and then scouted. Finally, today, I completed the White Day set (It took 150 pulls) but it was totally worth it!! I waited a year and then on March 14th (in JPN Timezone), this White Day, I did it ;-;