You know, Mujin X Duyi would be a legit couple in a BL story. Mujin's in love with his twi...

You know, Mujin X Duyi would be a legit couple in a BL story. Mujin's in love with his twin sister and keeps projecting her over Duyi. Duyi hates Mujin and wants to keep the creep away from his sister but eventually warms up to him. The story just writes itself