Day of Younger Sister, (Younger Sister Day) is a calendar event in Omake. It occurs every 9/6, Sixth day of the nineth month.
It can also be started by eating a Sister's Love Filled Lunch(?) that has the It Brings an End enchantment. Or by a younger sister invoking Ragnarok , they will invoke Yougner Sister Day instead.
Effects[]
During younger sister day, almost all NPC spawns are younger sisters. Areas affected include: Dungeons, Shelter NPCs, Party Time!, Hunting, Panic, and Wilderness.
It also spawns giant younger sisters.
Omake Overhaul[]
In Omake Overhaul, if younger sister day occurs in the Void, the void will only spawn giant younger sisters, scaled appropriately to the void.
