The series originally debuted in April 2025.
Rin Mikimoto’s romance manga series “Keepsake Heartache” (Hōsekibako ni Ai wo Tsumeyō) is getting an official English release! Kodansha’s K Manga platform announced that it will serialise the manga digitally in English and the first six chapters of the series are already available to read on the platform.
Keepsake Heartache
Creator: Rin Mikimoto
Publisher: Kodansha
Reading platform: K Manga
What is Keepsake Heartache about?
Mikimoto began serialising the manga in Kodansha’s Bessatsu Friend magazine in April 2025, and the first compiled book volume was published in November of the same year.
K Manga describes the series as:
At five, she started humming melodies. At ten, she found her treasure. At 14, her world lost its spark. At 17, she starts to hear the music again. Mone Tsukimori, a slightly cheeky high schooler, has someone she can never forget. What is Mone’s past that only Anji-sempai knows...?
Rin Mikimoto’s previous manga series includes Kiss Me at the Stroke of Midnight and Lightning and Romance.
Kiss Me at the Stroke of Midnight (Gozen 0-ji, Kiss Shi ni Kite yo) began publishing in the Bessatsu Friend magazine in 2015 and it ended in May 2020. Kodansha USA published the book volumes in English, and the 12th and final volume came out in January 2022 (July 2020 in Japan). The series was nominated in the shōjo category in the 43rd annual Manga Awards in 2019, and also inspired a live-action movie in 2019.
Lightning and Romance (Inazuma to Romance) began in January 2021 in the Bessatsu Friend magazine. The sixth volume of the manga came out in June 2024. Kodansha USA publishes this series digitally in English.

