Took translation from here. Credit goes to RD'E Typesets & Felix Lawin.
(Also first translation, so I apologize for any shoddy work).
Updated
We finally welcomed Jack to Chaldea.Thank you, Nursery, for hosting such a wonderful party.Wonderful?Not at all!...But today...It's no different from the usual tea party!Is a party where everyone sits and smiles side by side as usual!WE'LL BE WITH YOU!GREAT FOUNDER!