Shirokusa and Kuroha have agreed to appear in the drama for the true ending that's set to be released at the same time as the documentary. Kuroha, the last to interview Sueharu, looks back on her memories with him. She was there before he became an actor, the moment he became a star, and after he left show business, watching from right by his side. The place she's chosen to bring him for the interview is their "secret base," the place where they opened up to each other long ago.
but the biggest reason is 
"there is no reason."
".لكنّ السّبب الأكبر هو "لا يوجد سبب
aber der wichtigste Grund ist,
dass es keinen Grund gibt.
Pero la más importante
es que no hay un razón.
Pero la más importante
es que no hay ninguna.
mais la principale,
c’est qu’il n’y en a pas.
ma il motivo principale è che
"non c'è alcun motivo".
mas a maior razão é que "não há razão".
но вся суть в том,
что объяснить эти чувства нельзя.