Akkun to Kanojo (あっくんとカノジョ, Akkun and His Girlfriend), also known as "My Sweet Tyrant", is a Japanese manga series written and illustrated by Waka Kakitsubata. It began serialization in Media Factory's Monthly Comic Gene magazine in June 2013. An anime television series adaptation by Yumeta Company premiered on April 6, 2018 and ran for 25 episodes through September 21, 2018.
The romantic comedy follows the everyday life of an extremely tsundere (initially aloof and abrasive, but later kind-hearted) boy named Atsuhiro "Akkun" Kagari and his girlfriend Non "Nontan" Katagiri. Akkun's behavior is harsh toward Nontan with verbal abuse and neglect, but he is actually head-over-heels for her and habitually acts like a stalker. Nontan is oblivious to Akkun's stalker ways, and thinks his actions are cute.
- Official anime website (in Japanese)