Kyou wa Mada Futsuu ni Narenai

Takahashi, a 27-year-old freelancer who likes cute girls, and Yamashita, a fast-paced but sensitive manga artist. At the end of their high school years, the two, who had no desire to find a job or go on to higher education, have been together ever since they got detention for their desired career path. Going on to higher education, getting a job, getting married...they are troubled by the "futsuu" they often encounter in their lives, but somehow manage to stay positive. Two girls. A just-right relationship that loosely fits their hearts.

(Source: Ichijinsha, translated)