Blood Witch
Michael had assumed that he would have to wait a while until the Blood Witch returned from the Origin Expanse, but he didn't expect to be kept waiting until early next morning.
Hence, he decided to attend the Limit Breaker Course, and deepened his understanding of the Memory Lane technique. Now that Michael could extract knowledge and information from books, Memory Lane's efficiency decreased drastically. Nonetheless, it was helpful to have Memory Lane as a back-up to use if he couldn't extract the information straight from the source.
Michael had to reach high mastery of Memory Lane's 2nd Stage until the end of the semester to pass the course, either way. Thus, he might as well pratice the technique whenever he had time.
Other than practicing Memory Lane, Michael spent some time refining his mind with Ceasurium Menta. He consumed two Energy Nourishing Pills and refined his mind for a few hours before he decided to sleep.