If you’re following the Demon Slayer collaboration recommendation, prioritize aiming for Tanjiro and Zenitsu at 6-transcendence. The supplied source title names those two as the first targets, but does not explain how to obtain copies or complete the upgrades.
What to do next
Use Tanjiro and Zenitsu’s 6-transcendence as the stated goal. The available source material does not provide banner, shop, mission, currency, or upgrade requirements, so check the in-game collaboration information for the steps and costs before committing resources.
Free Seven Knights Re:BIRTH Codes
Current active codes and how to redeem them.
Sarah Williams
Sarah specializes in RPG and collection games, explaining team building, character growth, and beginner-friendly ways to avoid expensive early mistakes.
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Player Comments
67 players commented on this guide.
The tips are practical and easy to follow.
Good guide for Seven Knights Re:BIRTH players. The strategy part was useful.
I wish I had read this before upgrading the wrong thing.
This guide answered the exact question I had.