Double ID

Mc will hide the fact that he is the famous first-placer in the otherworld. Has action:
https://www.mangago.me/read-manga/the_100th_regression_of_the_max_level_player/

A little different, it's the main lead rather that hides his other identity as the MC's favorite streamer:
https://www.mangago.me/read-manga/trapping_the_foxy_doctor/

I havent read this but im pretty sure "Guardians of the Lamb" has that. The art is super pretty

Trash Of The Count's Family (it's great just give it a try)

You won't get the feeling of mc hiding something at first but he has tons tons of what he's hiding that slowly gets revealed even to the readers and more half the people mc knows actually knows nothing about him except for what he shows

Thank youu

Thank youu !

Thank youu !