Do know: the trailer is heavy on the Japanese language (it is a Japanese game). Konami's upcoming DS dating sim Love Plus appears to be the most advanced dating sim to hit the platform.

The first part of the game is standard fare: Players court three girls, trying to get them to fall in love. That's where most dating sims end — Love Plus is just getting started. The second half is open ended. You've already got the girl, now what do you want to do? Want to touch her on her forehead, cheeks, arms, etc. via the touch pad? You can email her, call her via the DS mic and study together.

As shown in the trailer, players can set how they want their girlfriend to address them. What's more, over time, she modifies to match the players' likes and dislikes. The way she speaks will even change slowly over the course of the game.

Love Plus, which is scheduled for release later this year, runs on a real time clock, which even corresponds to the different seasons. The DS title is packed with over 5,000 scripts, 150 CG events and 25,000 voice expressions — something that might make a localized version not only tricky but time consuming and costly.

Love Plus will be out in Japan on September 3.

Love Plus release date announced [Canned Dogs]