Jin and Fuu learn that Mugen cannot read.  A drunk man also can't believe it just before he passes out.  The trio stick him with their bill.  Jin leaves to pay a visit to a dojo while the drunk man, now sober, takes Mugen off to teach him how to read.  Jin finds out that the master of the dojo is dead and that thugs who run around tagging now live there, the leaders of which are the two sons of the master.  After meeting Fuu, the two boys challenge each other for her and they decided the challenge will be to tag the most dangerous place around.  Unfortunately for them, the now semi-literate Mugen beats them to it.