Bonds Under the Stars: Mechas and Girls

In the near future, in 2149, humans have made breakthroughs in interstellar navigation technology and established a colonial base on the "Ios" star 12 light-years away from the earth. However, they unexpectedly encountered unknown "astral eclipse particles" - these particles will corrode mechanical instruments and spawn powerful "astral eclipse organisms", threatening the survival of the colonial base. In order to fight against the star-eclipse creatures, humans have developed "star-core mechas", which need to be bound to humans with "star-core adaptability" in order to exert their maximum combat power. And more than 90% of those with adaptability are girls. The protagonist is a rare young man with "full adaptability" who can resonate with multiple star core mechas at the same time. Therefore, he is involved in a secret surrounding star eclipse particles and star core mechas.