In Nishimachi, after talk to the purple-hair girl several times, she will give you [???] (I dun't know what it is)
In Pachinko, before work, talk to the man at bottom-right of pachinko, you will find that he is the owner of a Hot Spring
The next day, when working at Pachinko, talk to him again, after worked, go to his chair, you'll find a key-item unlock Nanamimachi
Work at "Kyabakura" (Dance), try to get No.1 (Manly -> Kindly -> Clothes...) (Spend 3 days)
At the fourth day, you'll unlock an event