The only one I could think about is the player hides his past. Not about an alien but still about misunderstandings on a mc that could literally die if any other character tried to fight him yet everyone is fearful and respectful of him. Really good read
I am Not That Kind of Talent
Illusion Hunter from Another World
The Player Hides His Past
The Demonic Cult Leader Is Too Reluctant
Similar kinda feel for different reasons:
Trash of the Count’s Family
Lv.99 Princess of Black Flame
I Stole the Number One Ranker’s Soul
The Housekeeper of the Dungeon
How to Use a Returner
My S-Class Hunters
Omniscient Reader’s Viewpoint
The 100th Regression of the Max-Level Player
The Hunter’s Gonna Lay Low
Also! The two main characters get together in the novel (idk in the manga tho- maybe)
Wait wait the player hides his last is BL??
*past
The two characters that share one body are said to be in a relationship in the novel at the end
It doesn't show anything in the manga but it does have a bromance in it
Bro what ???? How is that possible??
Wait what, seriously?! In what way?? You don't know how much this news just made my day
BASICALLY one of the main character made the other when he was young (middle school) and now they share a body and go through misunderstandings from other people (and at one point they separate)
took self love to another level
Technically- since the other MF is a persona
*mc*
Please im begging with my hands folded