My manga doesn't have much content yet, so there are only these two easter eggs:
1.The hand from the L4D2 (Left 4 Dead 2) game cover
2.The sign on the left reads 'Tabehoudai (食べ放題)', which means 'all-you-can-eat restaurant'. In fact, the term 'Tabehoudai' didn't exist in ancient times - it's a modern word, but who cares XD
