This is a simple and reasonable suggesstion/request but please increase the drop rate for Mysterious Buds. With the sheer amount of possible items that can be recieved from the gacha boxes that you exchange the buds for, they should be easier to find so a person can complete the set they are trying to get. Typically I get 1 Mysterious bud every 50-100 monsters.
Another possible solution that can help is make it so we can exchange Silver In-game Gacha coins for them. Like 1-2 coins per Mysterious bud. The drop rate for the coins is similar to the drop rate for Mysterious buds anyway.
Thanks.