En Yufuin  

Battle Lover Cerulean, 由布院 煙

A student in his third year at Binan High School, Atsushi takes things slow and has mastered being lazy. Although he has an opposite personality, Kinugawa is a great friend and they call each other "Atsushi" and "Enchan". Despite being capable of completing tasks when necessary, Atsushi often lacks motivation to do so.