This game is part of the V series of Wrestle Angel games without adult content. It plays similar to Wrestle Angel 3
in terms of the combat, the training, etc; However, it features different characters and protagonists, and is clearly not supposed to be a just non-H remake of that game. All the interface is mouse driven. There's a lot of battles you watch, which is a little tedious... a reader sent in some screenshots and instructions to disable that, click this button
at the pre-fight roster, to make it look like this,
then press this button to proceed.