Mutsu Amatani

 (天谷 睦, Amatani Mutsu) is the shy academic girl of the group. Highly intelligent, she ranked first in her school year. Her hobbies are reading novels and cooking, Mutsu dreams to become a yaoi writer in the future.

Appearance
Mutsu has a short and somewhat thin figure, her hair is reddish purple and somewhat short, her eyes are light blue and he wears red glasses.

She usually wears her standard high school uniform consisting of a white long-sleeved shirt, a red bow tie, a navy blue short skirt and a pair of black half-legged stockings.

Personality
After Homare, Mutsu is the most clever and the most suitable for the survival of the group (According to Homare herself), she thinks logically and thoughtfully, and normally she is currently responsible and mature. Mutsu normally cares about doing the best for the group, although that will bother her on occasion.

Adjusting to her life on the uninhabited island, Mutsu greatly admires Homare for her wisdom of survival, her seriousness and her maturity, and always tries to help her, also constantly enjoys learning from Homare and makes her very happy to receive her compliments. Mutsu sometimes does not have much patience with Shion and Asuka as Homare and is irritated by them (although she does not always show it)

Abilities
Mutsu is really skilled in math and cooking, can get alternative solutions to problems and can grow a small garden.

Etymology

 * The name Mutsu means "friendly, harmonious, intimante" (睦).
 * Mutsu's surname Amatani means "heaven, sky" (天) (ama) and "valley" (谷) (tani).

Trivia

 * Mutsu could very well be an Otaku since she likes to read manga (usually Yaoi) and play video games.
 * Mutsu has A-cup breasts.
 * Together with Shion Kujo, both are physically weaker compared to Homare Onishima and Asuka Suzumori.
 * Mutsu has a great passion for astronomy and has a great knowledge of various stars and constellations.
 * When there was a suggestion of separation into groups, Mutsu really didn't want to stay in a group without Homare, since she knows that without her she, Shion and Asuka, wouldn't survive.
 * Mutsu is considered by herself the one that works the most in the group since she is the one who cooks.
 * His birthday is May 9 - Taurus sign.￼