The name of this song is "とある一家の御茶会議/toaru ikka no ochakaigi" Translated to A family tea meeting. ochakaigi is a coined word that combines a tea party and a meeting(御茶/ocha is tea, 御茶会/ochakai is tea party, and 会議/kaigi is meeting) I'm sorry to I'm not good at English and it may be difficult to understand;;