Hello, I trained this lora on AnythingV4.5 with screenshoots from anime and cards from mobile game. It was extremely hard to make all the characters turn out fine and there are no artifacts. So please share your results.
For good result you should use upscaler. At frist I generated many arts without upscaler, then chose best, copyd they Seed and re-generated with upscaler(R-ESRGAN 4x+ with denoising=0.7).
All images generated on AOM3, Starlike, jafamix with orangemix Vae. DPM++ 2m Karras 6-9 CFG 20-40 steps and 0.6-0.7 Lora weight
For good Ophis you should download text inversion from Corneo.
Remeber that Gasper is a guy!!

Tags for demon wings: symmetrical demon wings, dxd wings,
Tags for usual dxd school uniform: (dxd clothes:1.4), school uniform, skirt, white shirt, (white socks), black boots, red skirt,black corset,

Tags for church battle clothes: (dxd outfit:1.4), elbow gloves, black gloves, covered navel,thigh boots, turtleneck, cross necklace, necklace, cross,

Tags for Rossweisse battle armor(maybe it should work only with (dxd armor:1.4)) : (dxd armor:1.4), breastplate, fingerless gauntlets, boots, hip guards, black leotard underneath breastplate, black thigh-high stockings,

Tags for Venelana Gremory: 1girl, Venelana Gremory dxd, large breasts,ahoge,brown hair, purple eyes, short hair,
Tags for Grayfia Lucifuge: 1girl, long braids, twin braids, breasts, grey hair, large breasts, long hair, (Grayfia Lucifuge dxd), mature woman, adult face,

Tags for Yasaka: 1girl, cat ears, orange eyes, hair ornament, ribbon, hairband, yellow eyes, very long hair, animal ears, yasaka dxd, large breasts, blonde hair, long hair, fox ears, tail, fox tail, multiple tails,fox girl,thick eyebrows,
Tags for Himejima Akeno: 1girl, black hair, long hair, smile, ponytail, ribbon, breasts, large breasts, hair ribbon, very long hair, himejima akeno dxd, puple eyes
Tags for Rias Gremory: 1girl, red hair, long hair, ahoge,rias gremory dxd, very long hair
Tags for Asia Argento :1girl, long hair, green eyes, blonde hair, ahoge, very long hair,asia argento dxd
Tags for Xenovia Quarta :1girl, multicolored hair, blue hair, short hair, green hair, yellow eyes, chalkboard, two-tone hair, streaked hair, xenovia quarta dxd,
Tags for Irina Shidou:1girl, purple eyes, (Irina Shidou dxd), antenna hair, orange hair, long hair, twintails, very long hair,
Tags for Aika Kiryuu: 1girl, solo, brown hair, glasses, twin braids, yellow eyes, long hair, pink-framed eyewear, green eyes, Aika Kiryuu dxd,

Tags for Koneko Toujou: solo,animal ears, cat hair ornament, solo, yellow eyes, cat ears, hair ornament, short hair, grey hair, koneko toujou dxd, small breasts,
Tags for Kuroka: adult woman, solo, animal ears, solo, breasts, cat ears, tail, cat tail, large breasts, yellow eyes, black hair, hair rings, long hair, kuroka dxd, slit pupils, adult face,
Tags for Serafall Leviathan: solo, twintails, black hair, long hair, purple eyes, open mouth, Serafall Leviathan dxd, medium breasts,
Tags for Ophis with her deafult clothes(need a file text inversion from Corneo): solo, black hair, long hair, black eyes, ribbon, flat chest, navel, (Ophis dxd), small girl,barefoot, black dress, black gothic lolita fashion,
white bloomers, purple lolita hairband, (ophis clothes:1.3), corneo_x_pasties
Tags for Ravel Phenex: solo, pantyhose, blonde hair, blue eyes, drill hair, twintails, ribbon, twin drills, black pantyhose, bow, Ravel Phenex dxd, medium breasts,
Tags for Rossweisse : adult woman, solo, blue eyes, rossweisse dxd, long hair, antenna hair, very long hair, large breasts, grey hair, ribbon, (green eyes),
Tags for Sona Sitri: solo, 1girl, sona sitri dxd,purple eyes, glasses, black hair, short hair,
Tags for Tsubaki Shinra: 1girl, solo, Tsubaki Shinra dxd, black hair, breasts, long hair, large breasts, brown eyes, yellow eyes, glasses, ribbon,
Tags for Kunou : solo, tail, animal ears, fox tail, 1girl, blonde hair, fox ears, yellow eyes, multiple tails , ponytail, nature,multicolored hair, kunou dxd, kitsune, small girl,
Tags for Gasper Vlady: solo, male focus, pointy ears, blonde hair, red eyes, ribbon, Gasper Vlady dxd, 1boy,