Loving Yamada at Lv999 (Japanese: 山田くんとLv999の恋をする, Hepburn: Yamada-kun to Reberu Kyū-hyaku Kyū-jū Kyū no Koi o Suru) also known as Yamada Kun to lv999! is a Japanese manga series written and illustrated by Mashiro. It began serialization on Comic Smart’s Ganma! manga website in March 2019. As of October 2023, the series’ individual chapters have been collected into eight volumes. An anime television series adaptation produced by Madhouse aired from April to June 2023.