Who would win?
Tanjiro Kamado (Final Arc) vs Deku
Both are skilled and both are fragile, so either can take the other down with one clean hit. Deku is simply stronger, as One For All puts him a couple of tiers above Tanjiro's Sun Breathing, so he's the one far more likely to land it.
- Deku is two tiers stronger
- Both can finish the other
- Deku's power makes his finish land first
The hero of Demon Slayer, a boy who becomes a demon hunter to save his sister. This is Tanjiro in the final arc, using Sun Breathing, the original breathing style.
Izuku Midoriya, the hero of My Hero Academia. Born without powers, he inherited One For All, a stockpiled quirk so strong it can break his own body.
The full breakdown
For the stat fans: every check the engine ran, fighting in character and with no holding back (engine v1.8.36).
In Character
In short
Deku fights at a level Tanjiro Kamado has to reach up to, and the gap shows in every exchange. Both fighters have a way to end the fight, so it comes down to who lands it first. Both can finish and neither is harder to put down — Deku is faster (speed 8 vs 7), which gives the initiative edge. An edge is a preference, not a guaranteed win. Deku wins it clearly.
The tables below show every check behind this, with the numbers the engine used.
Full engine breakdown
Power bracket
| Fighter | Bracket |
|---|---|
| Tanjiro Kamado | 4 |
| Deku | 6 |
Gap of 2. Awards 110 points to Deku.
Ability interactions
| Type | Interaction | Points |
|---|---|---|
| counter | Deku's spider sense soft-counters Tanjiro Kamado's tactical stealth | +8 |
Soft counter: reduces an ability's effectiveness without nullifying it. Hard counter: the ability does not function against this opponent at all.
Win conditions tested
| Check | Tanjiro Kamado | Deku |
|---|---|---|
| Kill | PASS reach 5 vs Deku's 0 | PASS reach 7 vs Tanjiro Kamado's 0 |
| Contain | FAILED no containment method | FAILED reach 6 — a temporary hold, needs 8 to be permanent |
A kill lands only when the attacker's reach meets or beats the defender's resistance. Containment must clear two bars: it has to out-reach the opponent's escape and reach 8 to hold permanently — below that it is a temporary hold that lapses. A fighter who fails both cannot end the fight, however much damage they do — which is how an outmatched fighter can still force a stalemate.
Can they threaten at all?
| Fighter | Has a usable offensive route |
|---|---|
| Tanjiro Kamado | YES |
| Deku | YES |
This checks only whether a fighter can meaningfully attack at all. It is tested before the win conditions above — so a fighter can pass here and still have no way to finish the opponent.
Rulings
| Tanjiro Kamado has no rating for resisting being knocked out or shut down, so it is read from their tier as 1 rather than as none (incap resistance 0 -> 1) |
| Deku has no rating for resisting being knocked out or shut down, so it is read from their tier as 3 rather than as none (incap resistance 0 -> 3) |
| Both fighters have a valid win condition — the model now assesses the race. Any edge it finds is a preference, not proof of who lands first |
| Both can finish and neither is harder to put down — Deku is faster (speed 8 vs 7), which gives the initiative edge (+40). An edge is a preference, not a guaranteed win |
Final score
| Key awards | Points |
|---|---|
| Both can finish and neither is harder to put down — Deku is faster (speed 8 vs 7), which gives the initiative edge | +40 |
The largest awards, not a full ledger — bracket gap, attribute clash and counter points are listed in their own sections above.
Tanjiro Kamado 20 · Deku 178 — margin +158, graded clear. Points accumulate from the checks above. The engine resolves the fight; the AI only narrates the result it reached.
No Holding Back
In short
Morals make no difference to this one — it resolves exactly as above.
Full engine breakdown
Power bracket
| Fighter | Bracket |
|---|---|
| Tanjiro Kamado | 4 |
| Deku | 6 |
Gap of 2. Awards 110 points to Deku.
Ability interactions
| Type | Interaction | Points |
|---|---|---|
| counter | Deku's spider sense soft-counters Tanjiro Kamado's tactical stealth | +8 |
Soft counter: reduces an ability's effectiveness without nullifying it. Hard counter: the ability does not function against this opponent at all.
Win conditions tested
| Check | Tanjiro Kamado | Deku |
|---|---|---|
| Kill | PASS reach 5 vs Deku's 0 | PASS reach 7 vs Tanjiro Kamado's 0 |
| Contain | FAILED no containment method | FAILED reach 6 — a temporary hold, needs 8 to be permanent |
A kill lands only when the attacker's reach meets or beats the defender's resistance. Containment must clear two bars: it has to out-reach the opponent's escape and reach 8 to hold permanently — below that it is a temporary hold that lapses. A fighter who fails both cannot end the fight, however much damage they do — which is how an outmatched fighter can still force a stalemate.
Can they threaten at all?
| Fighter | Has a usable offensive route |
|---|---|
| Tanjiro Kamado | YES |
| Deku | YES |
This checks only whether a fighter can meaningfully attack at all. It is tested before the win conditions above — so a fighter can pass here and still have no way to finish the opponent.
Rulings
| Tanjiro Kamado has no rating for resisting being knocked out or shut down, so it is read from their tier as 1 rather than as none (incap resistance 0 -> 1) |
| Deku has no rating for resisting being knocked out or shut down, so it is read from their tier as 3 rather than as none (incap resistance 0 -> 3) |
| Both fighters have a valid win condition — the model now assesses the race. Any edge it finds is a preference, not proof of who lands first |
| Both can finish and neither is harder to put down — Deku is faster (speed 8 vs 7), which gives the initiative edge (+40). An edge is a preference, not a guaranteed win |
Final score
| Key awards | Points |
|---|---|
| Both can finish and neither is harder to put down — Deku is faster (speed 8 vs 7), which gives the initiative edge | +40 |
The largest awards, not a full ledger — bracket gap, attribute clash and counter points are listed in their own sections above.
Tanjiro Kamado 20 · Deku 178 — margin +158, graded clear. Points accumulate from the checks above. The engine resolves the fight; the AI only narrates the result it reached.