This is a two-person model for Arona and Purana, and at the same time, it also has a good performance in generating single-person images. Note that I added offsetnoise when training this model to make a light and flat art style, so it may change your ckpt model's light.

To generate Arona:

arona,bowtie,hair over one eye, blue eyes,multicolored hair,blue hair,short hair,pink hair,white bow hairband,white bow,braid,halo,

and her clothes:

school uniform,white bowtie,white sailor collar,blue serafuku,long sleeves, choker, white skirt,

To generate Purana:

purana, halo, long hair, white hair,braid,white hairbow, black hairband ,hair over one eye, grey eyes,

and her clothes:

black skirt,black serafuku,school uniform,black sailor collar, black choker, long sleeves, black coat, black pantyhose, pantyhose,white necktie

To generate Arona&Purana:

(2girls,multiple girls),

(purana, halo, pantyhose, long hair, white hair,white necktie,braid,black serafuku,school uniform,white hairbow,black sailor collar, black hairband, black choker, long sleeves, black coat ,hair over one eye, grey eyes, black pantyhose, black skirt:1),

(arona,bowtie,multicolored hair,blue hair,short hair,pink hair,school uniform,white bow hairband,white bow,white bowtie,white sailor collar,braid,blue serafuku,long sleeves, halo, choker, hair over one eye, white skirt, blue eyes:1.05)

The generation of two-person images is not stable and will be improved in the future.