Tempest

When the Y chromosome is destroyed by a solar storm, males face extinction. Women opt to crossbreed to keep humanity alive. However, the emergence of a boy 2000 years later, Hime, catches everyone off guard. He yearns to be a regular girl and confess his love for Kou. Unfortunately, female chromosomes begin to deteriorate, and scientists race against time to generate male offspring. Could frozen sperm be the answer?