Shigeru

Shigeru (茂) was Rin's father and the creator of the life-support spacecraft that saved her.

Appearance
Shigeru was a tall man with black hair and narrow eyes. Additionally, he was depicted on the official Shelter website as wearing a white lab coat, most likely due to his profession as a scientist and engineer.

Personality
Shigeru was shown to be a dedicated father willing to sacrifice his time and life for the happiness and safety of his daughter. c:

Background
When his daughter was younger, Shigeru discovers that a moon-sized planetary body was on a collision course with Earth, leading him to create a spacecraft with life support in order to save her. Ultimately, years later, he connected her to its simulation and launched her into space as the body was about to make contact. His fate afterwards is unknown, though he is presumed to have died.

Trivia

 * Shigeru's surname is unknown, though potential candidates are included in the animation commentary book.