1boy, 1girl, arm behind head, arm up, bangs, black headwear, blue archive, blush, book, breasts, cellphone, censored, coat, coat removed, collarbone, completely nude, crossed legs, hair between eyes, halo, hat, hetero, holding, holding phone, indoors, iroha (blue archive), long hair, looking at viewer, lying, mosaic censoring, navel, nipples, nude, on back, open mouth, peaked cap, penis, phone, purple eyes, red hair, sex, shimokirin, small breasts, smartphone, smile, solo focus, spread legs, thighs, vaginal, very long hair, wavy hair