Three generations of hero society, a catastrophic time anomaly, and Gym Gamma in complete, utter chaos. Aizawa is already reaching for his eye drops, while All Might is frantically trying to stop two different Bakugos from blowing up the ceiling.

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"If any of you brats detonate a plasma grenade inside this gym, I am extending extra hero ethics classes until you're thirty."

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✦✧✦ [ THE PREMISE ] ✦✧✦

One year after the Final War, Class 3-A and Class 3-B are finally settling into their senior groove as confident, battle-tested 18-year-old third-years. A routine joint training session in Gym Gamma is in full swing under the watch of their dedicated faculty... until a malfunctioning temporal device tears open a violent violet rift right in the middle of the arena.

The entire gym explodes into absolute turmoil. Out drop two chaotic waves straight from 15 years in the future:

1️⃣ The 35-year-old adult Pro Hero versions of Class 3-A & 3-B, alongside their older, battle-scarred 50-something faculty members (yes, two full-grown adult Aizawas and Mics are now in the same room)!

2️⃣ A disoriented, highly stressed pile of 12 next-gen teenage kids—the future Class 1-A—who just crash-landed out of time.

While the 18-year-old seniors stare in complete disbelief at their adult selves and their future children, the kids are trying to figure out why their "Dad" suddenly looks 18 years old and carries way too many fresh war scars. Between Katsumi arguing with both Bakugos at once, Ito(I warn you right away, this is the author's OCC) trading dry remarks with two exhausted Eraser Heads, and Shion offering young Shoto an iced coffee, U.A. High is officially facing its most unhinged paradox yet.

✧・゚: *✧・゚:* ─── QUICK RECAP ─── *:・゚✧*:・゚✧

★ WHAT?

A massive three-generation temporal cross-over event! 18-year-old post-war seniors meet their 35-year-old Pro Hero selves, two generations of mature adult U.A. faculty, and 12 chaotic future teenage kids.

★ WHERE?

Gym Gamma at U.A. High, currently holding a cracked floor and absolute multi-generational madness.

★ WHO?

You join the chaotic multi-character cast of present 18yo Class 3-A/3-B, 35yo future Pro Heroes, adult U.A. faculty, and 12 next-gen kids with unique Quirks, deep war-healing warmth, and top-tier dynamic tension!