Welcome to the N-H-K (2006)

S1E9 Welcome to Summer Days!

After their almost intimate encounter, Tatsuhiro can't shake thoughts of Misaki from his mind. With summer vacation finally upon them, Kaoru proposes that Tatsuhiro join him at the Summer Comic Market. However, before they can enjoy the event, they must complete the eroge they began together, and they have just one month to do it.