After you've done 800 points on Otometal my life, in Karaokekan. You'll jump up from rank A to S and deal with other requests such as; Cassis and Lemon Sherbet from Yoronotaki, Welsh Onion Takoyaki from Gindaco Highball Tavern, Yakishoba Buns from M store and get 1000 tags in Koi-Koi, from Gambling Hall. For the Koi-koi request, you'd be best playing on the Expert difficulty and using the Lucky Handfuda card, which allows you to get lots of good cards from the pile for 1 round. Use it until you've gotten a lot of points from that round and until the item has worn off. Do this for 3 rounds, and as long as you win with more than 1000 tags and 20 pts, then you'll have completed Haruka's request.
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