When I first started watching kdramas my first recommendation was Hello my Twenties (Age of Youth). For some reason I didn't start it until recently. I actually love it, all the characters are great and I love all of the side stories for each character as well as their growing relationships. Of course there are two kpop idols in there as well which is a bonus, Ryo Hwayoung from T-ara who I loved but was super disappointed she only cameos in part 2 (more on that when I do my final thoughts for part 2) and Han Seongyeon from Kara who took a while to grow on me but I love her in part 2. My favorite character of course is Park Eunbin's character. She is super funny, creative, eccentric and someone I would have a blast with. I just can't get enough of her. I've started the second season and I actually may like it better than the first so far, we shall see.