Peak anime so I will read the manga

In a time and place where one's soul can be morphed into a weapon, there are modern-day magicians called Mage-Knights. Although Kurogane Ikki is a student at an institution that trains Mage-Knights, he has no particular talent in magic and is labeled

'Back in those days, the delinquent boy I liked... liked me back.'Dorae runs into her first love, Haewon, for the first time in five years at university. She receives a belated confession from him... but rather than feeling happy, she is simply bewil