Pure Heart Volume 1 (Yaoi)

Tozaki is a writer who, by coincidence, is reunited with his first love from
high school, Kurata, while on assignment. That night they go out drinking, and
after confessing his old feelings, Tozaki finds himself, dazed, in Kurata's
arms! But what Tozaki thought would be a one-night stand turns into a
relationship Kurata wants to continue, and Tozaki finds himself captivated.