Magical★Explorer: Eroge no Yuujin Chara ni Tensei Shitakedo, Game Chishiki Tsukatte Jiyuu ni Ikiru

Few titles are more revered among horndogs-(ahem) connoisseurs of Japanese erotic video games-than Magical Explorer. One day, our smut-loving hero wakes up to find he has been reincarnated into the body of the game’s dreamboat protagonist! Or rather, his hapless comic-relief best friend, Kousuke Takioto. But with his unparalleled knowledge of Magical Explorer and Kousuke’s unorthodox abilities (a scarf that doubles as a fist?), our hero vows to turn the game’s unluckiest loser into its mightiest heartthrob. In this world, nothing is out of reach when you’ve got the know-how!

If you like this, try

Gacha wo Mawashite Nakama wo Fuyasu: Saikyou no Bishoujo Gundan wo Tsukuriagero 74%

2027

Swap the game-knowledge cheat for a gacha smartphone, but you still get a guy stacking a beautiful-girl harem with unfair advantages.

Isekai de Cheat Skill wo Te ni Shita Ore wa, Genjitsu Sekai wo mo Musou Suru: Level Up wa Jinsei wo Kaeta 2nd Season 73%

Another self-aware power fantasy where knowing the rules of the world lets the hero casually dominate every challenge.

The Familiar of Zero: "Rondo" of Princesses 71%

12 eps · 2008

You'll recognize the same school-life-meets-magic isekai energy, this time with a hero navigating a harem of girls who actually adore him.

Shining Tears X Wind 71%

13 eps · 2007

A regular guy pulled into a magical school-adjacent world by mysterious girls mirrors that same wish-fulfillment jolt of isekai discovery.