A translation of the letter Aki-P wrote for Kojiharu (excuse any mistakes, I'm still quite new to Japanese): "To Kojima Haruna-sama, You have always been a diligent member. Even when I didn't know how to handle some stronger personalities from some other original members you always neatly did what had to be done. At a time when AKB48 still didn't sell well you suddenly told me during an interview in Daikanyama: 'I am surprisingly good at singing!' Naturally you said it in your playful way of saying things. But because you were so diligent I didn't pay attention/I forgot about it and you started complaining and feeling sulky about it. You were right: your singing was in fact really good but I had forgotten about it. So I quickly came up with a WCenter song for you and Maeda Atsuko: 'Yuuhi wo Miteiru ka?'. A few years ago you told me you want to talk to me about something so we met for dinner in an Italian restaurant in Azabujuban. I'm certain you were thinking about seriously graduating back then but in the end we were only talking about it jokingly. I feel like I was a father who didn't want to hear that his daughter had plans to get married and so I avoided the graduation topic when it came to you. It's needless to say you were always thinking about AKB's future, you took care of the kouhais and didn't bring up the topic all the time. So I didn't bring it up either, I let you do it and I thought it would be nice if you stayed in AKB even after you are 30. Now we're finally celebrating your celebration on the 19th April 2017 and I will ask you this: 'Haruna, can you stay a little longer?' Just kidding. I won't get spoiled by you anymore. Stay yourself. Even if others see you as a person that lacks motivation or that you're cutting through life without work, because the truth is that you loved AKB48 more honestly and seriously than anyone else. You had a big sense of responsibility and I thank you from the bottom of my heart. Thank you. Congratulations for your graduation. You have my blessings for your second start into life. Akimoto Yasushi."