The three princesses who escaped from the planet Omega loved and protected peace on Earth as their second homeland. The anguish of their youngest sister, Cosmo Angel Yui, a member of the Antarctic team... approaches from her colleagues. Due to being of a superhuman race, physical relations with humans were forbidden by her sisters. A major incident occurs! Will their firm promise waver?! "Thi... this is SEX!? It... it feels too good..." [BAD END]
