miyasu risa, natsume eri, patchouli knowledge, remilia scarlet, embodiment of scarlet devil, touhou, artist collaboration, 2girls, age difference, asymmetrical docking, bathing, blue hair, bow, breast press, breasts, female focus, hair bow, hat, jitome, loli, long hair, medium breasts, multiple girls, nude, onee-loli, purple eyes, purple hair, red eyes, same-sex bathing, shared bathing, short hair, sponge, symmetrical docking, wings, yuri