The battle with Kai reveals secrets that the Nagatsukis would rather leave unknown.
Wouldn't him staying over 
make it easier to go after him
ألن يسهّل مبيته هنا عمليّة إيقاعه
Wäre es nicht leichter, sich ihm anzunähern,
wenn er hier übernachtet
Ma se fosse rimasto, non sarebbe stato
più facile provarci con lui,
Ele ficaria.