Mankind was destroyed by wars and natural disasters, and the only survivors were Gaia, and her children, Uranus, and Eros. While wandering around the desolate land, soon they come across a dome-shaped facility. There were advanced machines that they had never seen before and vegetation that had already gone extinct. Although they were relieved for a moment, suddenly something mysterious happens...!? A new Greek myth that tells the story of human rebirth. (Source: Tokuma Shouten, translated)

https://comic-earthstar.com/episode/14079602755514578964

A booklet packaged with Harta volume 75 at select stores. It's an anthology of one-shots centering on the theme of older brothers.

"What is the curse placed on Duke Aidan Adilov--?!" Alice Solate, the fourth daughter of a lowly countess, is on the verge of ruin because of her sister and father, In order to save her brother, who is the only one in the family who has been kind to her, she marries Aidan Adilov, the "cursed duke". When Alice arrives at the Duke Adiloff's house through the forest, she finds a mysterious young man standing in the rain.