Responses
um.. well one was
http://www.mangago.zone/read-manga/nii_chan_harada/
let me see the second one
I only know 2 which are by Harada :
http://www.mangago.zone/read-manga/nii_chan_harada/
http://www.mangago.zone/read-manga/yajirushi/
just please check the tags and the summaries for both before reading

https://vm.tiktok.com/ZMJC3W5Mv/