Frankly, I'm not sure where to begin with this one. Yes, something called a "Soul Nude" combat system, in which using "soul words" leave your opponent naked, is an obvious start. But Gachitora!: Abarenbou Kyoushi in High School also features batting practice, back rubs and, of course, the obligatory fishing game. Needless to say, this is a Japan-only release.
What's crazier is the "Soul Nude Battle System" isn't for fighting bad guys. It's how the main character, Torao Kaji counsels his problem students, I suppose. By striking a student with "soul" words, he can break a wall the student has placed around her heart. A totally successful use of soul words leaves her butt nekkid. Not that the school board or PTA would have a problem with this form of discipline.
I really can't make heads or tails of what genre this belongs to, so I'll just call it "weird" or "adventure", which is like "general studies" as a college major. You may see plenty more screens, plus gameplay (and marketing) videos at the game's official website. Andriasang has details on getting a demo, which features Soul Nude gameplay.
Gachitora's Soul Nude Battle System Revealed [andriasang]