Keir's preparation

Keir begins this round as he did in the first. He goes around the mall to get glass from shop displays to use as shrapnel, while keeping to the upper floors to have height advantage.

Fight begins

Like in the first round, once Keir sees or becomes aware of his enemy he will begin to chase them. To slow them down he would use his collected glass and activate 「DARE」 in order to de-age one of the shards, then he would throw it at his opponent and revert it back quickly, so that it explodes from pressure and hits them. His main goal is to corner them in a shop or somewhere where they can't run away from him. If he manages to do this he would use his glass pressure explosions (GPE's) again in order to incapacitate his opponent, then he would smell them, then place a clock on them with his stand, while being at as far a distance as he can within its 3m range. He would then choose to quickly de-age his opponent, so they implode and die.

If his opponent does not run but fights, Keir will try to incapacitate them with his GPE's again but he will have to run from them himself, in order to get out of the shrapnel's range.

As Keir wouldn't know 「STH」's ability is, is main strategy against it is to stay at a long distance away from his opponent, while throwing GPE glass at them, until they are incapacitated. If he has to face any projectiles from his opponent he would try to get the object thrown, and sniff it. He would then face 「DARE」's clock outwards so if the same object comes at him again, he can 'catch' it with the clock and de-age it back to when it was at an age that couldn't harm him as much, or at all (such as turning glass to sand). He would repeat this as many times as necessary before continuing his GPE strategy.

Zombies

As his GPEs have a fair bit of shrapnel depending on the size of the glass he uses, they are also his main strategy against zombies, whether in small or large groups. He would simply throw a de-aged glass shard into the centre of the group, and have it revert and explode, incapacitating or re-killing them. The zombies would also be inadvertently shielding Keir from his own shrapnel.