homura subaru, koakuma, patchouli knowledge, embodiment of scarlet devil, touhou, 2girls, :d, ass, bat wings, bath, bathtub, book, bubble bath, censored, convenient censoring, crescent, crescent hair ornament, demon tail, earrings, female focus, hair ornament, head wings, jewelry, milestone celebration, multiple girls, nude, oekaki, one eye closed, open mouth, piercing, purple eyes, purple hair, red eyes, red hair, same-sex bathing, shared bathing, smile, tail, wing piercing, wings, yuri