There is a strong curiosity among people to uncover the cause of death in Ruby Hoshino’s previous life.

Ruby Hoshino, a central character in the manga series Oshi no Ko, is known as the deuteragonist and shares the spotlight as one of the titular characters. 

Previously known as Sarina Tendoji, she fought a terminal illness and received care from Gorou Amamiya. After passing, she was reborn as the child of her beloved idol, Ai Hoshino. 

In her new life, she found solace and admiration as her idol-turned-mother nurtured her and taught her how to be an idol. 

Undeterred, Ruby and her twin brother overcame the devastating loss and revived her mother’s former idol group. With the support of her friends, she strives to fulfill Ai’s dreams and achieve success.

Ruby Hoshino Death Cause Revealed

Ruby Hoshino’s untimely death cause was a result of a terminal illness.

Ruby, also known as Sarina Tendoji in her previous life, played a significant role as the deuteragonist and one of the titular characters in the manga series Oshi no Ko. Sarina, a patient fighting a terminal illness, received care from Gorou Amamiya before ultimately passing away. 

Growing up neglected by her parents in her previous life, Ruby found solace and joy in her new life, as Ai became her new mother and taught her how to become an idol from a young age.

Sadly, this newfound comfort was abruptly shattered when Ai met a tragic fate at the hands of a disturbed fan. Despite this heart-wrenching loss, Ruby, much like her twin brother, rose above the despair. 

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Determined to fulfill Ai’s dreams, she revived her mother’s former idol group and embarked on a journey with the support of her friends to achieve the aspirations that Ai held dear.

What Happened To Ruby Hoshino Eyes?

In the manga series, Oshi no Ko, Ruby Hoshino, the daughter of Ai Hoshino, possesses a unique and distinctive feature in her left eye. 

Like her mother, Ruby has a star-shaped mark on her eye, which adds an enchanting and mesmerizing touch to her appearance.

This star symbolizes their connection and serves as a testament to the bond between mother and daughter. Interestingly, Ruby’s twin brother also inherits this star in his right eye, further highlighting their shared lineage and the extraordinary nature of their family’s connection. 

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This characteristic becomes a significant aspect of their identity, making Ruby’s eyes a striking feature that captivates the attention of those around her.

Insight Into Ruby Hoshino Past Life

In a poignant flashback depicted in Gorou’s recollections, Ruby Hoshino, known as Sarina at that time, emerges as his patient in the hospital while battling anaplastic astrocytoma, a form of brain Cancer. 

With her parents preoccupied and unable to be by her side, Gorou assumes the roles of her doctor and caretaker, forming a close bond with the young girl. 

During their time together, Sarina introduces Gorou to her favorite idol group, B-Komachi, led by the charismatic Ai Hoshino. 

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In a heartwarming conversation, Sarina expresses her wish to be reborn as the child of an idol and take care of Gorou.