looked at this screencap giggled and said

10

During the filming of the first Rurouni Kenshin movie, Takeru was softly singing a children’s song while Emi was watching him. After one of the staffs asked whether Emi had forgotten on how to sing said song, she started singing, all the while stealing glances at Takeru and switching to looking at the floor. Takeru told her to start from the beginning and the staff commented that the beginning part had to be sung together. Emi replied that they remembered it well (as in which parts to be sung together, etc…) She continued singing shyly nonetheless, with Takeru watching her. The staff then suggested another song and Emi giggled, shaking her head but started singing ‘Four Seasons’ (if I’m not mistaken)