Old friends resurface in Nasa's life, as he introduces Tsukasa to his old teacher Yanagi Naoko.
requires a fair amount of knowledge, effort, 
and resources. Good luck with the search.
يتطلب قدرًا لا بأس به من المعرفة
.والمصادر. بالتوفيق في بحثك
erfordert jedenfalls entsprechend
Wissen, Anstrengung und Geld,
des connaissances,
des efforts et des moyens.
sono richiesti notevoli conoscenze, impegno, 
e risorse. Buona fortuna con la ricerca.
requer um certo conhecimento,
esforço e recursos. Boa sorte na procura.
нужно немало знаний, усилий
и средств. Удачи в поисках.