The Cinderella panties have gone missing, prompting Keiki to step up his investigation. As a first step, he decides to spend a day with Sayuki - on a date, not as her friend or kohai, but as her master.
I know you put in a ton of effort.
Ich weiß, wie viel Mühe
du dir dafür gegeben hast.
Sé que te esforzaste mucho.
Sei que você se esforçou muito.