After making up his mind, Rein got busy with his plans. He was going to act like an absolute genius which would be so baffling to everyone that they would not mind his future transformed form that much. It was a hasty plan and was probably not very good but for the time being it was best that Rein was able to do with his weak baby body.
He started to walk and talk a lot. Many people of the village became familiar with him and this way Rein was able to gather quite a lot of information in the form of stories. To someone else this rule information would not have a high value but for current Rein, this type of information was very very valuable.
Very soon Rein had a good idea about everything and he made a mental note about all the important points. He was feeling a bit uncomfortable with his nerfed memory and remembering ability but he was still able to do at least this much.