鬼も十八番茶も出花
おにもじゅうはちばんちゃもでばな
just as even coarse tea tastes good when fresh, even homely girls look beautiful at the peak of their youth
鬼も十八 is read as おにもじゅうはち (oni mo juuhachi) and means even homely girls look beautiful at the peak of their youth.
おにもじゅうはち
oni mo juuhachi