Universal Century, Decemeber 0079. After the failure to capture the Federation HQ at Jaburo, the remaining Zeon forces on Earth conduct a retreat. On their way back to space to reunite with the rest of Zeon's forces in space, a Federation unit consisting of three red giants appear. (Source: Kadokawa, translated)

Hiromu is a boy who is terrible at every sport because he is weak, slow and untalented. He failed to get into any sport clubs, however he stumbled upon the ping pong club and surprisingly, he seemed to have some talent in the sport.

A girl named Emi uses a pencil that can grant any wish. Emi gets caught up in the robbery of a convenience store, and her life is in danger. She uses the pencil to wish for a "hero that will save everyone." Four heroes appear in response to Emi's wish to change the course of the future. (Source: Anime News Network)

Sora Takanashi is the eldest of the three sisters and a 2nd grader in middle school. She is 14 years old and has a tsundere personality. She normally refers to Yuuta as "older brother (Onii-chan)". She has fairly good grades in school but is not adept at cooking. This is the spin-off story of her before the main series started.