here the left one https://www.novelupdates.com/series/cheat-na-kaineko-no-okage-de-rakuraku-level-up/
Just want to point out the English title is on your image. (For the right one) But here Edit; ok it's not actually the name, but you can search for it and it was the name I thought it was.
https://www.novelupdates.com/series/cheat-na-kaineko-no-okage-de-rakuraku-level-up/ I Level Up Easily Thanks to My Cat with Cheat Powers. left https://www.novelupdates.com/series/the-magus-of-genesis/ Primitive Wizard or The Magus of Genesis right edir: lol, sorry i thought you where searching for the novels....