Kimi ga Shinu Made Ato Hyaku Nichi (君が死ぬまであと100日, "100 Days Until You Die") is a Japanese web manga series written and illustrated by Migihara.

It was serialized on Shueisha's online platform Manga Mee from November 2018 (and on Shōnen Jump+ from January 2020) to October 2020.

Rintarou Tsuda is a high school student with the capacity to predict the lifespan of living things.

[2] Written and illustrated by Migihara, Kimi ga Shinu Made Ato Hyaku Nichi started in Shueisha's online platform Manga Mee on November 1, 2018;[4][5] it also started publishing on Shōnen Jump+ on January 23, 2020.

The series stars Yuto Takahashi and Mizuki Inoue, both of HiHiJets, as Rintarō Tsuda and Itsuki Onodera respectively.