This contains two short stories, one about Bun and a new kid he's found to replace Satoru from Heat; the second is a look at Bun and Daisuke (which can be considered the end of the saga).
Part of Miyamoto Kano's "Walker" universe.
Miyamoto Kano's "Walker" universe timeline:
1) Are You Enemy?
2) Not Love *licensed
-- Not/Love dj - The reason why we live together
-- Not/Love dj - Dog Days
-- Not/Love dj - Demonic Conversations
3) Heat (MIYAMOTO Kano)
4) Under the Skin