Responses
http://www.mangago.zone/read-manga/film_emperor_s_reincarnation_script/ (This is more a recantation thing but he changes into the body of his enemies lover)
http://www.mangago.zone/read-manga/nyotaika_shita_boku_wo_kishi_sama_tachi_ga_nerattemasu/
(This a very smutty)
The first one is a webcomic and the second one is a manga
If it's a webcomic it would be perfect