OurSTREAM practice broadcast thumbnails have been updated. An OurSTREAM premium ticket will be given out for free as a gift.
https://twitter.com/imassc_prism/status/1954741058732216563

Special packs for the occasion are also available for purchase. These include OurSTREAM Premium tickets and Pick-Up Gacha Tickets.
https://twitter.com/imassc_prism/status/1954741310419530004