Anime Origins Infinity Mansion (Infinite Mode): Floors, Milestones & Mikey

What it is

The Infinity Mansion building in the lobby is the game’s infinite mode (also called Infinity Castle by players). Enemies escalate floor by floor; the run ends when you leak your base stocks.

Rewards

• Floor milestones: gems and trait rerolls at set floors (a 450-gem guaranteed milestone early, more rerolls/gems deeper).
• Leaderboard: top 100 at season end receive Mikey, a leader support whose team-damage buff ramps from 1% to 10% while he stays placed. Shiny rewards were also announced for the top bracket.
• Runs also drop true/stat arrows chances like other manual content.

Why play it

It cannot be macroed (manual inputs), so creators call it the best manual gem source after story. Bring Gojo (time stop), a second slow/stun (Akeno), two farms and your highest DPS; Yuta copying time stop extends late floors.

Related: gem farming, best team, units.