Pro tip: If you’ve played older versions of the game, the new prologue is still worth experiencing—it’s not just a visual update but a complete narrative overhaul. And no, you won’t lose your save progress; your captain will retain their stats and experience .

Rerolling is the process of playing the game initially, using the free premium currency given to new players, and summoning characters. If you don't get the top-tier units you want, you delete your data or switch accounts and try again.

In Oppai Odyssey , you are the captain of the USF starship . Your mission is to explore uncharted planets in the galaxy to find a new home for humanity. As you explore, you will encounter unique alien races, navigate the treacherous politics of the USF (the United Space Federation), and, most importantly, build friendships and intimate relationships with your ragtag crew.

Here’s a ready-to-post guide for , written for players looking for a free, spoiler-light walkthrough.

Starting your journey with a top-tier character sets your account up for long-term success. Rerolling allows you to secure S-Tier units right from the beginning. How to Reroll Efficiently

Placed in the front row to absorb single-target damage and draw aggro.

Overcoming mid-game walls requires specific tactical adjustments rather than raw power. Overcoming Campaign Walls

Participate in daily guild raids to earn high-tier gear and guild shop currency. 4. Advanced Combat and Team Building

Even as a F2P player, your first few pulls matter. Use an emulator to reroll until you secure at least one top-tier SSR character.

Switch off auto-battle to time your ultimate abilities right before enemy boss bursts.