A story about an ex-seme,who used to top and now he bottoms
Two seme fight for the top, eventually one becomes bottom http://www.mangago.zone/read-manga/mazu_wa_ubaiai/
This one was also good http://www.mangago.zone/read-manga/fusoku_no_renjou/
Maybe u'd like this one
http://www.mangago.zone/read-manga/puchitto_hajiketa/
I still prefer masato's short hair.it makes him more erotic