Well, he did have almost everything in his past life except for family, friends, love. So if he suddenly reincarnates to a life completely opposite to his, clearly he would be like, "wha-what the fuck? Who are you people?" He also doesn't have any recollection in his present life so he can't love his family since he doesn't know them at all
I mean it’s also due to his arrogance that he have no one in his past life too. In general, he’s just arrogant is what I’m saying and hopefully learn how to be more gentle with his new life. But character development in the updated chapters were very good!
I like this manhwa a lot but I have a mix feeling with his personality. Arrogant to the Max bro mc! But hopefully that’s not it and he will learn to love his family and friends, and understand how precious they’re to him. But as of now his attitude is a bit unlikable