Though Gundam Plastic Models, better known as Gunpla, exploded in popularity with the release of the anime series Mobile Suit Gundam, their presence faded before resurging with a new purpose. Through the power of Plavsky particles, fans are now able to pit their Gunpla against others in a virtual reality-style battle with the best competing at the annual Gunpla World Tournament. Sei Iori, whose father was a once finalist in the competition, dreams of one day conquering the contest himself. However, while Sei is an expert Gunpla builder, he lacks the prowess to effectively fight his creations during actual battle. In comes Reiji, a mysterious boy who is curiously ignorant of society but quickly demonstrates to Sei tremendous ability in Gunpla battles. The two boys decide to combine their strengths in order to sweep the Gunpla World Tournament and take the Gunpla world by storm.

Born to the royal family, Pacifica Casull has earned the nickname "Scrapped Princess" after an apocalyptic prophecy foretells her destroying the world on her 16th birthday. Rescued from certain death by a kindly family, she takes shelter with her adoptive older brother and sister, Shannon and Raquel Casull. When news of her survival reaches the ears of the God Mauser's worshippers, they issue her death at all costs, forcing Pacifica to flee for her life. Plagued by threats from the church, the nobility and even the common people, the three siblings attempt to outrun the fate Pacifica is destined to bring, all the while questioning if one girl's life is worth the world's demise. The true nature of the Scrapped Princess, along with the harrowing revelations of the world itself, becomes more and more apparent as the princess' 16th birthday fast approaches.

When the Inaho Junior High Ping-Pong Club grows apathetic about an upcoming tournament, their new manager, Kyoko Iwashita, boosts their morale with something they cannot refuse—a "sex pass," a voucher that grants the best player on the team unadulterated access to her body for a whole month. This is just one of many ways that this peculiar ping-pong club exceeds the realm of normalcy. Among the Ping-Pong Club's six members, Maeno proves to be the most troublesome, discovering bizarre ways to distract the team each day. With the others contributing to these mischievous acts, Takeda—the captain of the club—tries his hardest to put up with the team's antics. But when popular vice-captain Yuusuke Kinoshita is being swept away by girls, he instead finds himself receiving support from the stern but resilient manager, Kyoko. With the ever-present risk of their team being dissolved, Takeda and his friends find themselves having to overcome numerous obstacles. While Maeno often appears to put the club in jeopardy, it is usually he who devises schemes that are just so crazy that they have a chance of working. Can Maeno and his ludicrous stunts help his team persevere, or will they continue to just be a nuisance to the Ping-Pong Club?

In a Victorian world of steam, dreadnoughts, and occult horrors, Zhou Mingrui awakens as Klein Moretti. He walks a razor's edge between light and darkness, entangled with warring Churches. This is the legend of unlimited potential...and unspeakable danger.