Kounosuke, the young master of the Omi-ya, a kimono shop in the Ryogoku district and who is rumored to be a stylish playboy, has recently been turning up at the Izumo-ya rather frequently. Kounosuke is fairly refined in his manners, but there is a rumor that it might be an act to make women let down their guard, and Seiji is unwilling to have Oko fall for such a person. So one night, Seiji has a certain respected person bring along one of his shop's tsukumogami to a party with Kounosuke to uncover the truth behind this supposed playboy.
Allow me to explain the 
phrase "make it rain kiseru"
"اسمحوا لي أن أشرح عبارة "يُمطرها كيسيرو
Erlaubt mir, euch die Redewendung
„es Kiseru regnen lassen“ zu erklären,
Permítanme explicar la frase
"hacer llover los kiseru"
Os explicaré la frase
"hacer llover los kiseru"
Je vais maintenant vous expliquer
Visto che la stanno usando spesso,
Deixe-me explicar a frase 
 "fazer chover kiserus"
Позвольте объяснить вам, 
о чём идёт речь.