Fate Makes No Mistakes
Ongoing | Shin | 2000 released
uke is depressed and has little yang so he is easy to get possessed by ghost/demon. one day, he met seme who is a goblin and saved him from death. there is conflict/conspiracy, but seme has to be with uke all the time to prevent uke from dying. however, seme needs to replenish his yang which source from saliva or semen/sex.
Tenshi no Sasayaki wa Akuma wo Otosu