kurosaki kousuke, rena (blue archive), rena (c108 swimsuit) (blue archive), blue archive, commentary, highres, 1girl, alternate costume, bikini, blonde hair, blush, bow, breasts, bright pupils, brown hair, closed mouth, collarbone, cowboy shot, hair between eyes, hair bow, hair ornament, hairclip, halo, heart, heart hair ornament, long hair, looking at viewer, multicolored hair, navel, nose blush, purple eyes, scrunchie, side ponytail, sidelocks, simple background, small breasts, solo, streaked hair, swimsuit, white background, white pupils, wrist scrunchie, x hair ornament, yellow bikini, yellow bow, yellow halo