5 Years Old Tzuyu: Sana Nēchan, I want to be your Imoūto. I promise I will be a good Imoūto to you. 18 Years Old Tzuyu: I don't want to be just your little Imoūto, I want more than that! Nēchan (Onēchan) means 'Older Sister' In Japanese. Imoūto means 'Little Sister' in Japanese. Satzu x Yuri (GirlxGirl) Another adaption. This one would be the first ever Satzu Yuri adaption I've made. The original version of this novel isn't "Yuri", but I adapted as a "Yuri" version as I think it would be very cute to imagine Satzu as protective Nēchan (Unnie) and super clingy Imōuto (Dongsaeng). So, here we can experience the heartwarming interactions between protective Sana Nēchan and her little tail, clingy baby Imoūto Tzuyu chan. I hope you enjoy reading! #AllCreditToOriginalAuthor