Saezuru Tori wa Habatakanai: Don't Stay Gold

Yashiro has his eye on Kuga, a street punk known as the Mad Dog for his irascible temper and flights of rage.

But despite Yashiro's attempts to recruit the delinquent, Kuga refuses to join the yakuza and have his life dictated by others.

Things change, however, when he meets Kageyama, the doctor to the yakuza who might just be able to cool Kuga's fiery temper.

Note: Bundled with a special edition of the manga's 7th volume.