This gives pedophilia vives. MC is 12 year old in an adult body with adult memories and thinking about an underage girl. Its really disturbing. Good concept bad execution.
Pedo? I guess you are lost in the concept since MC is 12y old like you said and thinking about an older girl who is 16-17y old... anyway, its quickly resolved about MC’s age but author dropped it after 9 chapters with so much world building for nothing....