Looking for manga/webtoon/manwha recommendations with a betrayed mc who joins the "other" team (organizations, groups, etc) (and preferably has a secret identity or something similar to it).

I am into tragedy/action/adventure elements.

I am not really into the whole isekai thing or blatantly ecchi things..

Some of my favs to give an idea what genre/type i like:

Alive:The final evolution
Black Cat
The Breaker
Deadman Wonderland
D-Gray-man
Hunter X Hunter
Jigokuraku (Hell's Paradise)
Noblesse
Solo Leveling
Tokyo ESP
Tokyo Ghoul (RE)
Tower of God
Vinland Saga
Vagabond
Zettai Karen Children

Ubell Blatt (didn't enjoy this one so much)

Any recommendations are appreciated! Thank you!!

Nidome no Yuusha wa Fukushuu no Michi wo Warai Ayumu

I tried to read it a while back but it is on my dropped list.. I think it was too pervy or harem for my tastes from what I remember?

Shigurui
Aku no Hana
City of Darkness

perfect! thank you. I will give all three a try 😀

trying to build up a long reading list for the quarantine 🙄

Your welcome, same with you 😀