This might be a bit vague but... The mc transmigrates into a kid that was being held as a prisoner/ experiment in a lab. The ML is also there as an experiment. The mc proceeds to break them out along with 2 other people (the original protagonists of that world) the mc helps the police find and destroy the lab using hacking skills. I think he placed a trajan on the detectives' phone. Mc and ml get adopted by the same family and they gave the highest grades. Mc teaches the ml to hack. Heroic Death System arc 4