**Most of humanity has been wiped out by mysterious dark monsters known only as "Phantoms." Four survivors, who may well be the last of the human race, have found one another and are sharing a quiet, peaceful existence. These survivors are a kind, dependable teenage boy called Masashi, two teenage girls, shyer Sanae and bolder Yaeko, and a little girl called Anna. They feel as though they're just living in a perpetual "after school" state, waiting for the rest of the human race to come home. Chapter 01 _One Day on Earth_** Seiai -性愛- is composed of the kanjis 性 (sei) that means sex and 愛 (ai) that means love, together they form the word : erotic. Seiai Scanlations is thus a group dedicated to release adult mangas that have a meager chance at best to get officially published for all to see. <https://seiaiscans.wordpress.com/>