Chibi Maruko-chan is a shōjo manga series written and illustrated by Momoko Sakura. The series depicts the simple, everyday life of Momoko Sakura, a young girl everyone calls Maruko, and her family in suburban Japan in the year 1974.

Nagi Umino and Erika Amano, a studious high school student and a social media star, had nothing that linked them together—until they found out they were swapped at birth. When the sudden news is revealed to both of their families, their parents quickly devise a proposition with neither Nagi's nor Erika's knowledge: in order to restore them both to their rightful families and ensure everyone's happiness, the two should get engaged. When informed of this, Nagi and Erika are quick to reject the absurd plan, refusing to go along with their parents' wishes. But, with neither party willing to back down, only time can tell where their relationship will go.

Mission T is a secret operation to save the world from destruction. Trained as a ninja from a young age, Botan Negoro, raised to become the ultimate spy, teams up with another excellent spy, Kuruma. Their aim is to recover the legacy of the genius inventor Nikola Tesla, the "Shards of Tesla." Can the two outwit the agents of other countries who are also pursuing these fragments? A super-original spy thriller begins.