The third game, Friendly Hide-and-Seek, begins. Rival Group K, bolstered by an apparent 'genius' strategist, proceeds with a clear numerical advantage. Eager to regain Yuichi's trust, Tenji volunteers to be Group C's hider, but the couple's plans are strained by the addition of a new female teammate, Mizuse Maria. Yuichi confidently tells Tenji to "just trust me and wait," but then doesn't return for days...
And it's one that only the five 
members of Group K can use.
.وإنّها استراتيجيّة يمكن للأعضاء الخمسة للمجموعة ك فقط استخدامها
Und sie wissen auch, dass nur sie,
die Fünfergruppe, ihn nutzen können.
Ed è l'unica che i cinque membri
del gruppo K possono usare.
E que apenas os cinco membros
do Grupo K podem usar.