This is just my comment, I feel that the mc is being ignorant and arrogant just because he knows the plot, the mc should also know to not underestimate everything. Just because he is being trained by a strong servants doesn't mean that he is already strong. That is one of the factors that getting common to some op character, they are starting to get full of themselves that result for them to think invincible and when they let there guard down and result for a negative consequence makes the mc loss confidence and start blaming themselves. Also, since the mc in his previous life read some fiction and etc, he should already know that there are spy in the underworld from different faction. Exposing yourself makes you a bigger target that will result for consequence that I hope he knows. Also I don't but I feel that the mc is too trusting, he only have one way if thinking, he is not seeing the pro and con in his situation.
Also I have a suggestion and this is only a suggestion 😂😂
The nekoshou if that is there name
Save the nekoshou, don't let the system be the judge for your action, the system is only the guide.
By saving some pussy (nekoshou) you get additional members with amazing potential that sadly killed by the devil. By saving them you can maybe gain benefit in the yokai faction, and maybe an audience with mild and a loli.
Ditch the devils because they will do anything to bind you to them, and I also feel rias will be obsessed and do anything to make you part of her peerage after this fight.
Tnx for the chap~
do not be an ally or friend of the demons, in the novel it is clear that they like to use people, like the clan of the rias, rias is the same, is a cheap woman who went to bed or insinuated to issei alone to be faithful, I think you should not be friends with the demons, just stay in a neutral position and do not focus too much on women, now fan fiction is failing because the authors are practically making a hentai novel and do not concentrate on character. You should focus more on the mc, than be looking for women for a harem.