"Family ain't who you born with. It's who you die for."

In High School, Chemistry is a requirement. But you probably don't want to hear about it from these folks. Because you may end up having pyromaniacal idiot, Kim Taehyung around the Bunsen Burner at any time, and that's a no no. You also might not want to spill chemicals on high strung hypochondriac Jung Wheein because she’ll be washing her hands for the rest of the day. Or have the cynical klutz Jeon Wonwoo at the next lab bench, he has a tendency to break everything at a lab bench that’s five benches over. And you especially do not want unreliable foodie Daehyun hungry on an exam day. This is the story of Lab Bench of 3&4 and how they somehow make it through their senior chemistry class.

Sort of, unless Taehyung gets kicked out of school because he put a trash can on fire.

And if Daehyun doesn’t kill anyone because they ate his cheesecake.

Or if Wheein actually has to use the emergency shower because of the chemicals spilled all over her.

Until Wonwoo blinds someone because he broke all the test tubes that had the compounds in them.