What are the mod features you ask for? Free In App Purchases, please make it easy to activate or use the mod apk just like the "TASOKARE HOTEL" apk MOD.
I see that SEEC improved their security system so Lucky Patcher don't work anymore (same with other apps like Tsumugu Logic and Choice x Darling -both are SEEC games in japanese-)... maybe not mod tickets or coins but a mod that unlock all story and the special stories
Edit: Just in case the Japanese version of this game can be modded using Lucky Patcher (i know because i did that months ago)
helping a bit with the energy.. you can change your time forward to get energy, but you cannot gain energy again after you change back the "time and date" into normal.. probably after installing, change time wayyyy behind, then play it until energy depleted.. after that, jump 12hrs time, and your energy will be filled.. sorry for confusing explanation since english not my first languange :|
but i hope it helps and also waiting if someone can tweak the special story to unlock , since the data is saved locally ... i only need the special storyy u.u