Mikage Remi, 28 years old. A lazy loser girl who is always lazy. Her older sister is a born gambler. She also believes in superstitions, always believing things that have no reason, like "I always put on my socks from the right side up" or "I always have natto for breakfast". One day, after a series of events, I ended up ejaculating, and the superstition that "if you pull out your brother, you will win at gambling" became popular among my older sister. This is the dream story of how my older sister keeps pulling out my sister's cocks.