Thank you for contacting us, "Happy Friends" photos can only be obtained by purchasing during the event period and cannot be obtained through rewards during regular times. If you have collected all the albums except for the "happy friends" photos, the duplicate photos will automatically be exchanged for camera coins. Once you accumulate 100 camera coins, you can exchange them for new gold cards, however, you can only store the gold cards for now. Try to accumulate as many gold cards as possible and stay tuned for our future updates. Thank you for your patience and support.