Son Naeun, a girl frm Busan goes to Seol to find a job while studying. She lost her both parents at a young age and currently living with her aunt and uncle and her cousin. She doesn't want to depend on her realtives thus flys to Seol and soon get a job in Alcori Cafe.

Kim Myungsoo or also known as L. Was born and raised in California and back to Korea to live with his uncles. Study in JS Academy High School. Quiet, sleepyhead, insensitive/ignorant and moderately rude PLUS a TROUBLEMAKER. He is intelligent (or genius) but prefers to be an average student. Also part-time worker in his uncle's cafe.

Yang Yoseob, L's classmate and best friend. Cute puppy-face but really wild and loud. Working part-time in Alcori Cafe. He was known as 'cute devil'.

Lee Kikwang, L's classmate and best friend. He and Yoseob came from the same place. Polite and well-mannered. Wearing glasses and and nerd but intelligent. Good at Maths and Science and History. Working part-time at Alcori Cafe. Wear a contact-lens at work.

Kim Hyunseung, L's uncle. He runs a cafe called 'Alcori'. He changed his name as Jang Hyunseung to avoid the same name as company CEO, Kim Hyunseung. He loves cake and want everyone to feel the same.He has a cat which he named it 'Pobo" instead of 'pabo'.

Kim Junhyung but changed the name to Yong Junhyung because he felt his surname is uncool. L's uncle and also younger brother of Hyunseung. He is an English teacher at JS Academy. He is nerd being teacher but a womanizer during at night. Loves to hang out at Hongdae's club. He is very self-centered but very kind.

NamWoohyun , a baker form Alcori Cafe. He is very talented baker but was rejected by many cafes and restaurants.. Hahahaha.. funny. He is very funny and in need of assistant but the boys refuse to.

Well that's all the main character.. The others would arrive soon