The surrealist world of Tenshi no Tamago is desolate and devoid of the bustle of traditional everyday life. Instead, the world is filled with ominous phenomena, including floating orbs populated with statues of goddesses, gargantuan army tanks that seem to move unmanned, armies of fishermen who chase after the shadows of nonexistent fish, and caverns solely decorated with glass vessels of water. In this run-down world, a young girl takes care of a large egg and scavenges for food and drink. She encounters a mysterious man with a cross over his shoulder, who soon becomes curious about who she is and what her egg contains. They decide to explore the lost and broken landscape together, questioning each other about the nature of faith, the purpose of the world, and the origins of their lives.

Orhun Dura, today will be your last day in the party. Orhun, once a skilled Swordsman, had adapted to the role of Enchanter to fill a crucial gap in the Hero Party. However, one day, the party leader abruptly dismisses him, claiming his skills are lacking. Branded a weakling and a jack of all trades, master of none, by his former comrades, Orhun is cast out without a second thought. Determined to start anew, he returns to adventuring—this time as a Swordsman, the role he originally excelled in. But his time as an Enchanter was far from wasted. The experience, knowledge, and countless original spells he developed in the Hero Party have forged him into a warrior unlike any other. Now, armed with an unconventional set of skills, Orhun is ready to carve his own path—one that will prove his true strength to the world. (Source: MAL News)

Two OVA episodes are bundled as DVDs with each of volumes 6 and 7 of the manga. The first OVA is a prequel story written by the manga's author. Before the beginning of the main story, Rea and Chihiro have already met at a certain place: an outdoor hot-spring bath. The second OVA takes place after the series (effectively episode 14). The Furuya family finds a mysterious young girl hiding under the household temple.

Setsu Sawamura runs away from his small home village following the death of his grandfather, the legendary shamisen master Matsugorou Sawamura. On his deathbed, Matsugorou told Setsu to give up the shamisen if he was only going to imitate others instead of playing in his own way. Grieving, Setsu heads for Tokyo, hoping that the big city can inspire him to discover his own unique playing style. But Tokyo defies his expectations by drowning out all other sounds with the deafening noise of its city life. Concerned about her son, Setsu's rich and successful mother, Umeko, waltzes back into his life and forces him to enroll in Umezono Academy. At the school, he meets Shuri Maeda, a girl who is fascinated by the Tsugaru shamisen and wishes to perform a song her grandmother once heard a long time ago. Shuri starts up a shamisen appreciation club and convinces Setsu to teach the members how to play the instrument. As he becomes more involved with the club, will Setsu be able to recover his love for the shamisen and discover the unique sound he lacks?