Well, the title describes it all. Also, it'll be better if the MC is being a tsundere basically to everyone. For example: "I don't care what is going to happen to you." But then he's the first one to the rescue.Before someone mentions the tag, there are only 4 results and 3 of them are already in my reading list. I'm quite sure it's actually more than that and I also accept if it's RRL.
Mokushiroku Arisu. There are 3 volumes confirmed, ended with a cliffhanger. Not a prospective reading material.
"The Noble Girl Living in Debt" - Due to a misunderstanding, MC believes Agnes is a snob. Even though he "hates" her, his every attempt to act cruel towards her is just helping her and kidding himself on.