The ML is really cold to other people
During a Korean holiday(I think it's chuseok), the MC sent pictures of food to ML. Then the ML suddenly tells their family to also buy food for the holiday which make his family so shocked because he rarely asks for things. The MC Then phones the ML so the ML goes outside to answer it. When he was talking to MC, He was caught smiling by his family which left his family flabbergasted

Omegaverse but focuses on story
Buff bot that doesn't look malnourished
And ofc, babies.
https://www.mangago.me/read-manga/shima_chanchi_no_tsugaijijou/
https://www.mangago.me/read-manga/the_sacred_serpent_s_seduction/
Not totally omegaverse, but mpreg they have 3 babies and they are lovely and adorable
https://www.mangago.me/read-manga/accident_warning/
https://www.mangago.me/read-manga/high_school_salty_heart/
https://www.mangago.me/read-manga/dog_and_bird/
https://www.mangago.me/read-manga/kiss_me_if_you_can/