Responses
here is one!
http://www.mangago.zone/read-manga/gosan_de_fukou_na_gojitsudan/
i don't know about the other tho u__u
Big Bro's story: http://www.mangago.zone/read-manga/owaranai_fukou_ni_tsuite_no_hanashi/
(▰˘◡˘▰)

I can’t believe no one translated the sequel