A group of strangers come together to work on creating the greatest anime series ever.

Madarame Baku is a mysterious gambler. His nickname is Usogui (literally The Lie Eater). Club Kakerou is the top illegal gambling den, where gamblers vie to become the best in their profession. Seeing through the lies of others, Madarame Baku challenges a variety of high stakes games at Club Kakerou.

Kosuke Mizushima is a high school student at a provincial city and enjoys a comfortable life. One day, due to Kosuke Mizushima's excessive joke, his class is interrupted. The teacher gets upset and makes model student Mai Hayase keep an eye on Kosuke Mizushima. Kosuke Mizushima and his 4 friends all had crushes on Mai when they were in middle school. Due to a small incident, Kosuke Mizushima and Mai Hayase get close.

Iori’s only dream is to go to college on a remote island—but when he gets roped into the school’s debaucherous, alcohol-indulgent diving club his hope for a sparkling campus life is thrown into chaos.