goodness gracious, puritan freaks should find something else to read, you've spent too much time on twitter following ragebait accs
For real.
Why are they coming out of the woodworks here and now, anyway? If I was offended by ecchi, I wouldn't go out of my way to seek out an obviously ecchi manga, complain that it contains ecchi, then keep reading for three chapters and complain about the ecchi in the comment section of each chapter.
For anyone else reading this, if the title, cover image and synopsis haven't given it away for you, you should have realized within the first half of the first chapter that this is a slice of life ecchi romcom series. If you don't like it, why not just move on? Surely you've got better things to do with your time?
As for those who can't give the MC a break for doing things he believed to be a dream... If you really think actions taken during a dream define what kind of person someone really is, then all of you should be on some kind of watchlist. Because I guarantee you, everyone has done things a lot worse than groping some boobs without consent in at least one dream, whether they remember or not. But somehow you haven't commited a crime yet. Or so I would hope.
While there would have been a lot of better ways to go about it, the groping part was pretty obviously just a device to achieve two things:
1. to have the MC get stabbed by the sword, so it could be absorbed by him.
2. to have the main characters start out on a bad note, so that the female lead will feel humiliated and (according to her archetype) say "Ugh...! Kill me...!", whenever they get into ecchi situations. She is a kukkoro, after all, if you didn't catch that from the title - a stereotype of a female knight who utters "K-kill me...!" when humiliated.