Source: MMOWTS
Mihoyo revealed that the Three Realms Gateway Offering event will start on February 17. MMOWTS has also collected some stipulations about the event, even including the time when the event will end.
How to unlock the Three Realms Gateway Offering event?
Until the end of Genshin Impact 2.5, you can earn rewards from the Three Realms Gateway Offering event. To participate in this event, your Adventure Rank needs to be 30 and you should have completed the Stillness, Sublimation of Shadow, and Erebus’ Mystery quests.
What to expect?
Mihoyo stated that the Three Realms Gateway Offering event will be time-sensitive and you will no longer have access to the bokuso box. This unique item is a necessary element to participate in the event quest.
The event was revealed in a special program, including a brief description of the area where you'll need to use the bokuso box to repel dark energy as you travel through it. You can earn various rewards such as Primogems, Mora, talent level-up materials, and weapon ascension materials.
With the development of version 2.5, MMOWTS will also pay attention to relevant content and provide corresponding game guides, and once a new hero appears, you can also come here to buy Genshin Impact Accounts as soon as possible, which is also a guarantee of a good game experience.