An unofficial translation of the announcement follows:
The official HoriPro International YouTube channel will has pre-opened! On 28th June 2020 at 16:00 JST, four voice actors, Azusa Tadokoro, Ayaka Ohashi, Ibuki Kido, and Machico, will appear on the channel! It is the first time in three years that these four artistes have appeared together. Don’t miss this amazing live appearance!
Don’t miss it!