At the end of the video they reveal F.CUZ's comeback date to be the 19th of April.
Pictures:
D.O.B; June 8th, 1991
Height: 178cm
Weight: 62kg
Sources:
video: fcuz0108
pictures; daum, news zum, effcuz, raehyun's twitter profile pic
So excited! Preparing my heart for Daegun's video next :'3