Lora of Shadow Ring from One-Punch Man trained on screenshots from the manga and a few fan arts.

This character has two different hair styles, one with "long twintails "and other with "short twintails". It works better if you specify the hair style.

Some models may make her waist thinner than the original design, adding the word belly to the prompt seems to fix it.

Sometimes it won't have the shuriken on the scrunchie. I usually try to add shuriken scrunchies to the prompt and it works sometimes, but it can add shuriken to her bikini for some reason. When the prompt has the underboob tag, it seems to avoid the bikini shuriken.

This tags seems to work for her original design:

shadow_ring_opm, ninja, short twintails, small breasts, mask, fishnets, covered belly, dark bikini top, covered underboob, pants