"A Love Letter and a 13-Year-Old Actress") is a Japanese manga series written and illustrated by Jaga.

The series follows Fumi Isshiki, who works for the accounting department at JG Production Management.

As Fumi works with Ayano, the latter quickly becomes attached to him and later develops feelings for him.

[1] It began serialization on Houbunsha's Comic Fuz online service on September 20, 2022.

[3] The series has been compiled into five tankōbon volumes as of September 2024.