If the man had told his girls not to kill them, they may have been able to end things in some other way. But the moment they began to radiate killing intent, Yogiri had only one way to respond.

“Die.”

The three women fell to their knees before simultaneously collapsing forward.

-Volume 2 pages 153 and 154

“I have no idea who he is. According to his own explanation, he has an Instant Death ability of some kind.”

“Like hell! You think I’d make a mistake like that?! Their countermeasures against instant death were perfect!”

“If you say so.”

-Volume 2 page 156

『何者 かは わか ん ねー よ。 やっ た のは 本人 が 説明 する ところ に よれ ば、 即死 能力 らしい な』 　 モナド は この 世界 に 来 てからの 夜霧 の 発言 記録 を 参照 し、 情報 を 引き出し た。 『ふざける な！ 　 俺 が そんな 手抜かり を する と 思っ て ん の かよ！ 　 即死 対策 は 万全 だっ た！』 『知る かよ、 そんな こと』

-Volume 2 page 189