In Honkai: Star Rail, purchase this item to get Oneiric Shard ×300. Within 30 days of the purchase date, you will receive 90 Stellar Jades every day upon logging into the game.
Oneiric Shards can be used to buy packs in the game and redeem in-game currency, Stellar Jade.
Stellar Jades can be used to redeem in-game items, such as Star Rail Passes, Star Rail Special Passes, Fuel, and so on. Star Rail Passes and Star Rail Special Passes are used to obtain rare characters and Light Cones through Warps.