"The Striking Mage and the Maverick Hero" ? this translated title is so bad .
ぽんこつ魔術師とマイペースな勇者 = Ponkotsu Majutsushi to Maipeisu na Yuusha .
ponkotsu = useless , worn-out .
maipeisu = my pace / Doing something at one's own personal pace or speed (unaffected by the pacing of peers).
https://en.wiktionary.org/wiki/%E3%81%BD%E3%82%93%E3%81%93%E3%81%A4
https://en.wiktionary.org/wiki/%E3%83%9E%E3%82%A4%E3%83%9A%E3%83%BC%E3%82%B9
below is what happens next , between the 2 lovers , the hero and the mage , lol : https://mangadex.org/chapter/809737/1
mage : ah , yah~mm , hah~mm , ah , hero , hero ...