DAIGO's eldest sister Eiki Eiki released a new Doujinshi titled Naitou ka Hitobito. (内藤家の人々。)
DAIGO's eldest sister Eiki Eiki published a new Doujinshi titled Naitou ka Hitobito. in which it was actually released last month on 29th Dec .
So far , Animate is currently selling it for 756 Yen & based on the look of things , it's a spin off from what Eiki Eiki did with LOVE STAGE!! seeing that Naitou is DAIGO's surname .
And on the cover of the Doujinshi , it looked as though Eiki Eiki drew their parents on the left side with DAIGO on the far right while not leaving out Eiki Eiki's rabbit logo too LOL
http://www.animate-onlineshop.jp/pn/pd/1246358/