I'm a Noble on the Brink of Ruin, So I Might as Well Try Mastering Magic (Manga): Volume 2 by Nazuna Miki

Liam is making the most of his new life, learning all sorts of spells to prepare for the uncertain road that lies ahead. But when the first princess takes an unexpected interest in him, it signals many more changes that will rattle his ruin-bound life as a noble. Particularly chilling is the change in his eldest brother, Albrevit Hamilton. Once indifferent to Liam, Albrevit is now consumed with envy and hostility, seeing his youngest brother’s achievements as a threat to the Hamilton house and his own status. The desperate acts of a cornered young nobleman are not to be underestimated—but Liam, now equipped with more magical skills and knowledge than ever before, won’t be cowed so easily! Be it a rampaging young noble, an evil dragon, or even a spontaneous country-building endeavor, Liam faces every challenge head-on!