I suggest changing it to TerraDeiDemoni, considering that the mini-games on Mininost can sometimes be quite lengthy (e.g., running around collecting treasures). Although I have nothing against Mininost.
Yesterday, I talked to Tvarina, and I'll only be available on January 4th and 5th, so I'm not sure if it's even worth coming. Also, I'm feeling a bit under the weather and I'm almost broke, so I'll decide after the New Year when the system and the number of participants are definitely known.