Monster Strike: Mera×Death - Shinigami to Boku no Ijou na Koi

Ordinary high school student Ren has always lived an unremarkable and lonely life until the day a scythe-wielding grim reaper named Mera materializes in his bedroom to harvest his soul. However, Mera turns out to be utterly terrible at her macabre profession, getting flustered by modern teenage customs and accidentally triggering a supernatural romantic curse that binds their lifeforces together. Unable to separate without killing him, Mera must masquerade as an exchange student while navigating chaotic high school life. As underworld inquisitors and rival spirits descend upon the human realm, Ren and Mera navigate hilarious dates and explosive battles.