sim card

I am trying to enter a Japanese manga magazine raffle, but I require a japanese phone number, that can receive SMS text messages for the next two months in case I win Something, which I do not have. What brand of Japanese SIM or phone number can I buy that is cheap and receives SMS?

I'm traveling in Japan; in Beppu, Oita currently and trying to get a cheap phone plan (burner phone, sim card, whatever) that doesn't involve smartphones. any stores that sell cheap phone plans here? I need it to last at least a year or 2. Smartphone plans here for that kinda duration seem to...