After seeing the cover you will already know, that the drawing style includes well-drawn guys, but after the first pages hilarious SD faces are added. It' nice, how NA Yeri changes the style and adjustes it to the actual situation without flaws. So, the artwork is fine with me.
The storyline is - at first glance - not really something unique, because twin siblings & delinquentish guys have been quite popular in the Shoujo genre for a long time. Anyways, the jokes are well executed and the quarrels between the siblings seemed really natural. They bicker and argue, but care obviously about each other (as family). Same goes for the delinquent male counterpart, that brings more serious elements to the storyline. His background and the background of the main characters, which are set around their mother leaving for work, the dad also being busy and the older sister dying to meet her deadline (Yes, a bit cliche... Kkk.), bring serious issues into the common plot. I liked especially the last chapters (20+), when the different viewpoints start to collide and express the disturbing things left unsaid. I'm excited to see, how the author uses the first cracks later on.
The characters meanwhile are distinctive and each has it's own personality, so you get a mixture of everything - Including more quarrels, fights, comedic twists and cute emotional outbreaks of teenagers, that are about to grow up. To sum it up, if you got time, then give it a try! ^^