Oops, I've Become a System Jinchuriki.

"System, system, put the mode back quickly! My body will collapse if this continues." "The host doesn't have to worry. The sadness that a person can bear is unimaginable. It's enough for the host to keep thinking about things that make him sad. Leave the rest to me." "Ah, let me think about it. When I was 8 years old, I was playing with the neighborhood kids and had my pants taken off, in front of girls; when I was 10 years old, I was caught peeking at the girl next door taking a bath; when I was 12 years old, I went out to play alone and was defrauded of money by a strange uncle, and I was almost kidnapped." "Wait, stop, you are obviously talking about sad things, why are you smiling in your eyes!" "Because that girl later became my wife, and the girl next door secretly had a crush on me, and that weird uncle was caught not long after he left. Not only did I get my money back, but I also got a medal for bravery!" ... "Then we are dead now" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.