Remant Rose. The Garden Of Life, #1

Hadassah Kawaguchi wants a second chance. At eighteen, she's the newest Mecha Cadet hired by Fujin-Oya Corp., the powerful organization responsible for defending Tuntun Nippon-New Japan-from extraterrestrial threats. For Hadassah, becoming a Star Officer isn't just a dream. It's proof that she can outrun her criminal past, become someone better, and finally make her parents proud. But proving herself won't be easy.
Hadassah is thrown into a world of towering Mechas, dangerous training, ruthless expectations, and secrets buried deep within Fujin-Oya's shining walls. As friendships form and rivalries ignite, she begins to realize that the greatest threats to New Japan may not be waiting in the stars. Some may already be standing right beside her. And when the universe finally strikes, Hadassah will have to decide what kind of hero she truly wants to become.