excuse me are you reading it right? didn't you see that in the VERY FIRST PAGE OF THE VERY FIRST CHAPTER he obviously has e FUKNG HUGE inferiority complex (as well as he clearly has also a body complex, together wth the fact that he hasant have his heat yet) and his SHITTY SHITTY brother buggin him and his household as well? he was RAISED to be and THINK hes a unworthy person, he believe he is a person who has no value at all, he just got mesmerized by the seme's skills. He is trying to get the seme fall for him, on his own way, doing things like cooking and obeying him. Please be a little kinder and try to see WHY he is the way he is, not just calling him "not interesting at all". (=・ω・=)
http://www.mangago.zone/read-manga/usotsuki_na_tsugai/nbt/mpn_chapter-2179180/pg-15/
This omega is not interesting at all. If you didn't know it's not because he's an alpha, it's because he is him that he could do something like that.