It was quite enjoyable until nine shows up. He has no personality, and it's even more outrageous to see a character like that in a work that is meant to mock the reverse-harem genre.
People do not fall in love just because someone is kind to them - shocking isn't it? Even if they develop feelings of deep gratitude - that's it - gratitude, loyalty even. Why every loyal knight has to fall in love with the heroine?
While mocking the other characters as nothing but a female fetishes it promotes another fetish "a poor mistreated child which should be protected". 😮💨