Issei still happens to be that "rash" MC which I've come to be annoyed by. If anything happens to his friends no matter how trivial, especially matters of the sexual-related sort, sends him off into a flying rage. Because, this happens to be his two states - "Oppai" or a " crazy-angry" nutter. Moreover, whenever he's bombarded with these "oppai" the other female characters undress and jump after him. These scenes used to be funny - not anymore. The charm and the reason I enjoy the ecchi genre is because of the rarity and sex appeal, however, situations like these happen so frequently its irritating. Some of their internal problems happen to be extremely stupid and dragged on(MINOR SPOILERS FROM S2/S3)- like the one where Rias wants Issei to call her by her first name, this has been going on since around season 2. Get with it! But the most irritating thing here is the cringe, the stupid expression on Issei's face when he sees a women's breast or when the characters get some armour or something of the sort - proof that the animators are focusing on making it cool rather than focusing on the overall picture because apparently to the marketing department the audience happens to be a bunch of high-libido 11-13 year old who like to see something cool and want to see a screen full of boobs, right?
I'd rather give it 5 out of 10 but Akeno and Koneko happen to be my favourites so I'll give it a 6. This is just for S4 but seeing the series overall, and harem being one of my favourite genres, I've seen way, way better harem animes that this one.
(Sorry for the spelling errors, if any; my keyboards going through a bit of a problem because of which I've written this several times already, and it has gotten a bid tedious so I stopped focusing on spellings.)
