2015 set. The descriptions suggests this is related to MAX-MIX 10 (http://www.dlsite.com/ecchi-eng/work/=/product_id/RE132598.html) but the contents don't seem to match. I was hoping for more Nanatsu. Overall, disappointing... Anyway, please help ID characters in comments.
We are always recruiting editors, translators and proofreaders for EHCOVE. If you are interested, come by the Cove of Translators in the forums and introduce yourself.