I know they have issues with their ideologies but the poster looks cool!
The text reads,
希望をあなたと共に; 日本共産党; Change裹金政治
Which roughly translates to,
‘Hope together with you; Nihon Kyōsantō; Change the gold-wrapped politics’.
(The last line is likely a reference to the financial scandals of the current ruling Liberal Democratic Party)
Unfortunately they are the revisionists
The JCP are a product of their conditions, I think booting America out and ending the lib dem puppet state is a prerequisite for any improvement in Japanese politics.