鯛も一人はうまからず
Meanings
1
good food requires good company; even sea bream doesn't taste good eaten alone
Proverb emphasizing that even the finest things are less enjoyable without someone to share them with. The literal meaning is that even sea bream, a prized fish, does not taste good when eaten alone.
As the saying goes, 'even sea bream doesn't taste good eaten alone,' so a feast is no fun by yourself.