"How I Became a Hero" is an adult visual novel that puts the player in the role of a blind teenager. After receiving a mysterious gift from their best friend, the protagonist finds themselves transported to a fantastical world filled with magic with a variety of creatures, including elves, dwarves, giants and other magical beings.

The game's storyline is centered around the protagonist's journey from being an ordinary teenager to becoming a hero in this new world. Along the way, the player will meet various characters who will help during the quest. They will encounter challenges, face dangers, and ultimately uncover the truth behind their friend's mysterious gift and the world they find themselves in. Some of the girls will find a liking in the protagonist and engage in sexual activities and even deeper romantic relationships.

Overall, "How I Became a Hero" offers players a compelling and engaging adult visual novel experience that is sure to satisfy fans of the genre. It explores themes of adventure, self-discovery, and overcoming challenges in a unique and fascinating way as the protagonist grows his harem, which will keep players hooked until the very end.