fumio (ura fmo), watanabe akio, irisu makina, komine sachi, matsushima michiru, sakaki yumiko, suou amane, tachibana chizuru (grisaia no kajitsu), frontwing, grisaia (series), grisaia no kajitsu, game asset, 10s, 6+girls, :d, :o, ahoge, arms up, back, barefoot, beach, bikini, bikini skirt, black hair, blonde hair, breasts, brown hair, cleavage, closed eyes, double bun, fireworks, frilled bikini, frills, hair bun, hair ribbon, holding, holding fireworks, hood, hoodie, index finger raised, jumping, long hair, long legs, medium breasts, multiple girls, navel, night, o/, one-piece swimsuit, open clothes, open hoodie, open mouth, outstretched arms, pink hair, ribbon, school swimsuit, short twintails, side-tie bikini bottom, sky, smile, sparkler, star (sky), starry sky, swimsuit, twintails, very long hair