completely consensual (established relationship), hardcore
edge-play - uses chastity belt on dick
both partners are extremely kinky, seme is a sadist and uke is into basically every bdsm kink lol
This is extremely smutty but they're also so cute with how whipped they are for each other. It's basically Junai Drop Out but even smuttier and only one chapter
Shasei Kanri Dou Deshou