Smile of the Arsnotoria (Japanese: 咲う アルスノトリア, Hepburn: Warau Arusunotoria) is a Japanese mobile game created by Nitroplus. Developed by NextNinja and published by Good Smile Company, the game was released on iOS and Android in March 2021. A manga adaptation by Masaki Hattori began serialization in Fujimi Shobo's shōnen manga magazine Monthly Dragon Age in June 2022, with its chapters collected into a single tankōbon volumes as of September 2022. An anime television series adaptation by Liden Films aired from July to September 2022.