Happy Halloween Login Campaign was a login campaign in 2020 celebrating Halloween. The campaign ran from October 25, 2021 12:00 JST to November 7, 2021 3:59 JST. Players who logged in during this time received Halloween Boxes filled with items such as crystals, attribute gems, miracle gems, and large live bonus drinks.
After logging in for the first time, players receive a "Special Halloween Box" containing 300 crystals, 30 gems of each attribute, 30 miracle gems, and 3 large live bonus drinks. For any subsequent login, players will receive a "Halloween Box" containing 100 crystals and 1 large bonus drink.