Isekai de no Ore e no Hyouka ga Okashiindaga

Takumi is a video game geek who finds himself transported to the world of a video game. Confused by the sudden change of events, he unexpectedly gets taken in by the Blackwing Knights, led by the caring leader Gazelle and the beautiful assistant leader Felix. On the way to the royal capital with them, Takumi defeated monsters with a sword he picked up by coincidence. However, the sword was a cursed item that put the user in a state of heat in change of giving them incredible power! Then, gazelle and Felix come upon on to Takumi to try to comfort him…!?

(Source: AlphaPolis, translated)