スリーセブン

If you are iPhone and iPad owner,you now can download スリーセブン for free from Apple Store. The application is designed for use in English language. It is a whopper, weighing in at 25392128, so make sure you have plenty of free space on your iOS device. The new スリーセブン app version 1.3 has been updated on 2018-07-25.
More Info: Find more info about スリーセブン in Junichi Saiki`s Official Website : https://ayahimesoftstudio.com/products/threeseven/