i have a few fish bait in my chest. but i don't know how to use them. can someone explain how ? thanks

so a friend gifted me this game saying i really need it. mentioned something about my breakup. said i should get "HF Patch" to get the full experience, and also get some "waifu cards". absolutely refused to answer when i asked. i did eventually figure out what the "waifu cards" mean and i'm finally starting to understand what my troll of a friend meant by gifting me this game xD; onto to my question..s: it looks like it comes fully modded, but is that the full game? can i not just download HF patch withou...

找了很久都不对，诚求大佬，感激不尽

Anyone know how to get the official patch now that the website is gone?

ecstasy patch for steam http://aisteam.illusion.jp/index_en.php