Koi ni Mudaguchi (Japanese: 恋に無駄口, lit. "Chatter About Love") is a Japanese manga series written and illustrated by Ryoko Fukuyama. It has been serialized in Hakusensha's shōjo manga magazine Hana to Yume since September 2019, with its chapters collected into nine tankōbon volumes as of October 2022. A television drama adaptation aired from April to June 2022.