Sayori(紗世里)

Sayori is portrayed as a talkative person, being very cheerful and kind and the archetype of a Genki Girl. She is very clumsy and notorious for finding ways to accidentally hurt herself or to drop things, as well as tricking people just to get food. She is usually the only character, other than the protagonist, capable of breaking up arguments, and she is described as being paramount to keeping a relaxing atmosphere in the Literature Club, which becomes even more apparent after her suicide. Monika notes that while she may look like a good leader, Sayori is usually better when it comes to dealing with people. Sayori tries her best to help everyone be happy and dislikes attention directed at her well-being because she feels unworthy of anything that others have to offer her.

Sayori's depression makes her disorganized, and she often "cannot find a reason to get out of bed in the morning"; her room is untidy, and we are told the protagonist often used to clean her room for her. The protagonist notes how there hasn't been much change in her, and the changes the protagonist notices in her later are due to Monika's interference, amplifying her depression and suicidal tendencies. Her relationship with the protagonist and other people's happiness are her main coping mechanisms since she believes that if she makes everyone else happy, she will not have a reason whatsoever to be unhappy.