This SHUNGA is parody on Japanese monster.
The monster is called “Yamata no Orochi”.
“Yamata-no-orochi” is a big snake with eight heads.
You can see the eight Pen*s on this SHUNGA.
The name of this SHUNGA is “Ya[mara]-no-orochi”
[Mara] means Pen*s..
That’s funny. Hahaha.
Hyaku bobo katari