Of these, three are considered to be “filler” or short breaks in between arcs for story development purposes. No need to worry about missing anything important!
Issei Hyodo was a second-year student at Gremory High School. He had just finished his first date ever and it ended with him being killed by an entitled girl who felt she should have been dating Issei instead of her boyfriend since he’s prettier than the guy himself! Luckily for Issei, this wasn’t some minor inconvience. Things couldn’t be any worse: afterlife demons don’t come back from death unless given permission or ordered by their masters (both situations where I would say ‘yes’). As underling to Rias Gremory, high-level demonoid beauty queen supreme has made sure all will go well on earth, at least until next year when finals roll around again.
|1||1||I Got a Girlfriend!||Canon||January 6, 2012|
|2||2||I'm Done Being Human!||Canon||January 13, 2012|
|3||3||I Made a Friend!||Canon||January 20, 2012|
|4||4||I'm Saving My Friend!||Canon||January 27, 2012|
|5||5||I Will Defeat My Ex-girlfriend!||Canon||February 3, 2012|
|6||6||I Work as a Devil!||Canon||February 10, 2012|
|7||7||I Get a Familiar!||Canon||February 17, 2012|
|8||8||I Pick a Fight!||Canon||February 24, 2012|
|9||9||I've Begun My Training!||Canon||March 2, 2012|
|10||10||The Showdown Begins!||Canon||March 9, 2012|