Here's the translation from today's Fantia post:
This is the standing illustration that was supposed to be used for Arika's sub-event.
It seems like there won't be a place to use it once I start organizing the event, so it might not appear in the game.
It's just swinging a wooden sword for the Sex Knights' PR video... but...
I apologize for the delay in updates earlier this month; I wasn't feeling well.
Since my schedule got disrupted, I'll do my best to upload the Arika sub-event video this month.
I think I will make the sub-event into separate events with two or three stages.
I'm also thinking of making the final stage exclusive to the retail version.