I Became a Parasite and Had No Choice but to Survive

Have You Ever Become a Parasite Controller?

The Request Is That the Protagonist Becomes a Weapon System, Which Is a Plug-In Anyway.

Beg

Please Find Some Stories About the Main Character Being Reincarnated into a Parasitic Brainworm.

Suddenly I thought about whether there is such an article. I haven't read enough of my own.