Shiro Majutsushi wa Yuusha no Level wo Agetakunai

Irie Izumi was summoned to a fantasy world to defeat the Demon King…but first he needs to grow more powerful. In his quest to level up his skills, he forms a party with the voluptuous white mage Sheena. If Irie triumphs against the Demon King, however, he’ll return to his world—and the lovestruck Sheena has no intention of letting that happen. She’ll pull out all the stops to keep him from getting stronger, including wearing sexy outfits and distracting him in the middle of battle! Will Irie ever be able to concentrate on leveling up, or will Sheena’s schemes succeed

(Source: Seven Seas Entertainment)

Note: Includes 4 extra chapters.