Ashita, Watashi wa Dareka no Kanojo

• Ja Kanji — 明日、私は誰かのカノジョ • Ja Romaji — Ashita, Watashi wa Dareka no Kanojo • Genre — Romance

• Type — manga • Author — Hinao Wono • Publisher — * Cygames (web) • Shogakukan (print) • Imprint — Ura Sunday Comics • Magazine — Cycomi • First — May 3, 2019 • Last — November 10, 2023 • Volumes — 17

• Type — drama • Director — * Mai Sakai • Sachiko Kondo • Masato Sugawara • Writer — * Kisa Miura • Anna Kawahara • Lee Nawon • Licensee — Disney Platform Distribution • Network — MBS, TBS • First — April 13, 2022 • Last — June 28, 2023 • Episodes — 21 Tomorrow, I'll Be Someone's Girlfriend is a Japanese anthology web manga series written and illustrated by Hinao Wono. It was serialized on Cygames's online magazine Cycomi from May 2019 to November 2023, with its chapters collected and published in print by Shogakukan in 17 tankōbon volumes. A 12-episode television drama adaptation aired from April to June 2022. A second season aired from May to June 2023. The manga had over 5.6 million copies in circulation by August 2023. In 2023, the manga won the 68th Shogakukan Manga Award for the shōjo category.

The story is about college student Yuki, who accepts money to pretend to be men's dates and hold hands with them. Yuki has burn scars on her face, but covers them with makeup while working as a rental girlfriend.

Written and illustrated by Hinao Wono, Ashita, Watashi wa Dareka no Kanojo started on Cygames's online magazine Cycomi on May 3, 2019. The series finished with its 215th chapter on October 13, 2023, which was followed by an epilogue chapter released on November 10 of the same year. A special chapter was published on February 16, 2024. Its chapters were collected and published in print by Shogakukan in 17 tankōbon volumes, released from December 19, 2019, to February 19, 2024.

In March 2022, it was announced that the series would receive a television drama adaptation. It aired on MBS and TBS from April 13 to June 29, 2022. Disney Platform Distribution licensed the series for streaming worldwide. A second season of the series was announced in April 2023. It aired from May 2 to June 28, 2023.