Ore no Imouto ga Konna ni Kawaii wake ga Nai Portable - ULJS00358

[Itaru]

Itaru, could you please try playing both discs until you reach, for instance, ingame for both of them (in this one where you can see animations, in the other when you can hear sound effects) and then switch the log level to DEBUG? Just a small portion of it should be enough. Thanks!

Here you go.

By [Encrypted] do you mean it is untouched/unmodified UMD dump ?
I tried it using fresh dump, but nothing happens after I press Run button.

And about square symbol text in your attachment, you need to change windows unicode settings to japanese. That way all japanese text can be shown properly.

Press Run a couple of times, or enable Ignore unmapped imports.

I know that installing the Japanese fonts in Windows fixes the square symbols in the title bar of Jpcsp and in the UMD Browser, but it doesn't fix the ? symbols in the game itself since font emulation in Jpcsp hasn't been properly implemented yet.