Sekiro Genichiro Ashina boss guide: perilous attacks and lightning reversal
Prepare for the Ashina Castle rooftop duel, compare attack counters and learn the sequence for lightning reversal.
Edition covered
The original 2019 single-player campaign in the PC Game of the Year Edition. The guides use unchanged publisher campaign screenshots. Gauntlets of Strength, Inner boss variants, mods and the separate anime adaptation are outside the scope.
Prepare for the Ashina Castle rooftop encounter

This guide covers the campaign duel on top of Ashina Castle, including its final phase. It does not describe the opening prologue loss or Inner Genichiro. Equip healing, acquire Mikiri Counter and spend available beads, seeds and Memories before repeated attempts.
Trade controlled attacks and deflections
Stay close enough to keep pressure, but stop attacking when Genichiro takes the initiative. His jump slam can lead into a perilous follow-up, so read the next animation instead of committing to the same response every time. Retreating to heal may provoke a bow shot.
| Attack cue | Response | Follow-up concern |
|---|---|---|
| Regular sword sequence | Deflect its rhythm | Watch for the pause before another swing |
| Perilous thrust | Mikiri Counter | Step toward the incoming thrust |
| Low perilous sweep | Jump | Use the jump kick when aligned |
| Grab motion | Move outside its reach | Do not attempt a normal block |
| Bow drawn after you heal | Prepare to dodge or deflect | Do not queue a second heal blindly |
Reverse lightning before your feet touch down
After the two armored Deathblows, Genichiro changes to Way of Tomoe. When a lightning attack is coming, receive it while airborne and press attack before landing to return it. Jumping too early or landing with the charge still held can leave Wolf shocked.
| Step | Action | Timing check |
|---|---|---|
| Recognize | Watch for the visible lightning attack | A red warning alone can mean another move |
| Jump | Leave the ground near the incoming strike | Avoid spending the whole jump before it arrives |
| Receive | Let the lightning connect while airborne | Keep Genichiro in front of you |
| Return | Press attack before landing | Release the lightning while still in the air |
Learn one recurring mistake per attempt
If you repeatedly lose to a thrust, practise the Mikiri timing; if the final phase is the obstacle, conserve attention for its lightning cue. Take a useful observation out of each run. Extra consumables help only when you also create time to use them.
Two armored Deathblows are followed by the Way of Tomoe phase; keep focus after removing the second marker.
References
| Reference | Website |
|---|---|
| Shacknews: Genichiro Ashina boss guide | www.shacknews.com |
| PowerPyx: Sekiro boss guide | www.powerpyx.com |
| Activision Support: Sekiro game mechanics | support.activision.com |
| Activision / FromSoftware: Sekiro on Steam | store.steampowered.com |
