The Dragon-Slaying Knight Longs For A Clean Slate After Kissing The Evil Dragon

When college student Kugai was caught playing the game [Knight Vs. Evil Dragon] in class, he was spotted by his teacher and slapped into the game world! There fundamentally should’ve been a knight who landed his final blow to slay the evil dragon and marry the princess. But on account of Kugai’s transmigration, the protagonist wasn’t careful and ended up kissing the evil dragon. Hence, the game automatically recognized Kugai as an ally to the evil dragon and designated him a villain! Hey, the evil dragon seems to have changed too…