All Bets Are Off! It's been half a year since Takashima became friends with Shiraki, a regular at the pachinko parlor he goes to. She's a friendly gal and they have such a good relationship that they're even comfortable enough to exchange sex stories and dirty talk. After Takashima tells a story about being blue-balled at a soapland, Shiraki comes up with an exciting proposal: dirty car sex that'll drain his tank till he's empty. Jackpot!? by Oosaki is filled with lucky guys who strike it rich, winning the hearts of bombshell beauties and dark skin hotties! Cashing in with eight charming chapters including an exclusive final chapter featuring Takashima's final gamble to earn Shiraki's heart, Jackpot!? is a prize that any gambler would lay it all on the line for.