A mentally unwell Subaru gets transported to another world. The unfortunate inhabitants of the world are still in the dark of what annoyance had just entered their world, but it won't be long until the crazy boy truly shows off just how insufferable he can be. ***** (Don't listen to what's above me! Thirth Person is not only being rude and insulting me, but it's also spreading propaganda about me! Oh yeah, I can break the fourth wall.) [Chap 20... Everything before it is... Filler?!]

A man gets launched into medieval Britain into the body of Mordred, the Knight of Betrayal. He/She tries to change their destiny of being killed by their father.