"Haru Tsukishima is a prominent character in the Japanese manga series ""Die, Please!"" written by Miwako Sugiyama. Haru is a high school student who is the main protagonist of the series. Her name, Haru Tsukishima, is mentioned multiple times throughout the series.

Haru is described as a shy and reserved girl who struggles to connect with others. She has a strong sense of justice and a desire to protect those who are close to her. Haru also has a passion for music, which is a recurring theme throughout the series.

Despite her timid nature, Haru is brave and willing to put herself in danger to help others. This is demonstrated when she becomes involved in a dangerous game known as ""Die,"" in which players are required to fulfill the requests of a mysterious figure known as the ""Reaper.""

Throughout the series, Haru develops a close bond with a fellow player named Ichiro, who becomes her love interest. Their relationship is a prominent subplot and is referenced multiple times throughout the series.

Haru's character arc is centered around her journey to overcome her shyness and become more confident. She is forced to confront various challenges, such as dangerous game requests and social anxiety, and learns to face them head-on.

Overall, Haru Tsukishima is a well-developed character with a compelling story arc. Her name is mentioned multiple times throughout the series and her growth as a character is a major focus of the plot."