Tou no Madoushi: Teihen Madoushi kara Hajimeru Shihonron

The Guingard Tower; in a world dominated by magic, a child arrives at the doors of this magic academy. His name is Lynn. He is a child slave without money who dreams of a wealthy life. He has neither power nor talent. Besides that, a strong discrimination depending on the status awaits him in the academy to which he has enrolled. Investment techniques, a small amount of money and time, connection with aristocrats… Lynn uses all kinds of wits and runs up the stairs to be a great magician. Source: NU