He was infected by An Zhe but Dr. Ji doesn't know about it so ofc he would suggest that. He was now immune with monster infections (it proves when they went to the Underground base and fought but didn't get infected at all.
At your 2nd question, YES. now that the base was no longer at threat and Dr. Ji knew how much Lu Feng suffered as a Judge, he wanted him to live his life fully out of his business. He wanted them (An Zhe and Lu Feng) to have their time for themselves.
The arrest was due to freeing An Zhe and didn't bring him to the base, the time when they kissed and LF was unconcious)
i rated the novel at 8/10 i like it, but not much. It maybe bec the story focused more about science. They be explaining a lot of chemistry that beyond my knowledge and i got bored lmao But i guess its bec of the SciFi tag but still, they coul've explained it in a simpler way. Like why I am being lectured about the String theory.
The story was good but it lacks romance. Thats all.
To your second question, it was the doll that was shot.
Wait, when did Lu Feng inject himself with monster extract?
Just finished reading the novel which was really good but somehow tends to be a bit somewhat confusing? (I dunno if It's just me being dumb or the translation's just really confusing or it was just never really clarified.)
So, what really just bothers me is that Lu Feng injected himself with a monster extract in order to test if An Zhe infected him with inert infection which makes him unsusceptible to the distortion or any other monster infection, but it was never really clarified whether he was infected or not. But I'm assuming that he is (since he didn't mutate) but later in the extras Dr. Ji was suggesting for Lu Feng to infect himself with monster extracts to fuse with to enhance his physical capabilities. I'm confused about this since it contradicts my initial assumption that he was infected by An Zhe because if he became inert to any monster infection, then why would the doctor suggest this? Or does this fusing with monster characteristics uses a different mechanism?
Another thing is that at one point when Lu Feng was put in house arrest and was shot by an anti-judge protestant (not clear if that was really him since it was in the Doctor's pov), Dr. Ji announced that he was dead but then the next scene was Lu Feng in a fighter plane with Hubbard (captain of mercenary). I'm assuming this was just a scheme to free Lu Feng since he was supposed to be under house arrest??