The curse of Tsukuyomi's Water of Youth hasn't finished with Sumireko yet. Meanwhile, Adashino's younger sister, Oto, picks up on the presence of a Curiosity at the school she attends. Sumireko poses as Oto's friend in order to infiltrate the school.
You could stand to sound 
a little happier about it.
.أظهر بعض السعادة على الأقل
’n bisschen mehr Freude vielleicht?
Aie l’air moins déçu, un peu.
Cerca di sembrare un po' più contento.
Você poderia parecer um
pouco mais feliz com isso.
Ты бы хоть виду порадовался, что ли…