Talk:Yume Nisshi (夢日誌)/guide/@comment-88.148.89.40-20200219152455/@comment-36960404-20200219202622

enter snow world, then find a brick wall with a black door in it (it's a newly added area i believe)

to activate the event you'll need to equip the curtain effect! hope that helps ^^

edit: you can activate the event with the snow bug effect too