Mangetsu, who has become uncertain of her own existence, runs into Kuon's older sister, Shisui. As she talks with Shisui, Mangetsu feels moved to send a message to Shingetsu. Meanwhile, Shingetsu is convinced that Mangetsu is suffering because of the wish she made, and her guilt brings her to tears. As she's talking with Mangetsu, she becomes unable to bear it any longer and runs from the house...
I'll say it one more time to 
make sure you don't forget.
.سأقولها ثانية للحرص على ألّا تنسي
Ich sage es dir noch mal,
damit du es nicht vergisst.
Lo diré de nuevo para que no lo olvides.
Lo repetiré para que no lo olvides.
Pour que tu n’oublies pas,
je me répète.
Lo dirò ancora una volta
per essere sicura che non lo dimenticherai.
Vou dizer mais uma vez
para você não esquecer.
Скажу ещё раз, чтобы ты точно не забыла.