Cosmos manga volume 1 features story and art by Ryuhei Tamura.

When Kaede searches for a missing classmate, he is shocked to learn his lost friend is actually an alien in a human flesh suit. Grateful for Kaede's help with her case, cute and ruthless intergalactic insurance investigator Rin headhunts him. Kaede's experiential job interview leads to an epic battle on a commuter train, treachery, and the location of a hidden spaceship. But before he can decide whether to accept the job or not, Kaede discovers another alien hidden in plain sight - one with a tragic story to share.