Thank you for your comment! I'm so glad to hear you say that and to know how you enjoy and like Kei's story <3 It truly made all the effort of creating the game and working on the translation project worthwhile to see how much you enjoyed it✨
P.S. If you'd like to achieve 100% completion, the hint and the event chart screen can be helpful. It might also be a good option to check out the bonus story :D