especially for those who played Ouka 1

• 8 different routes
  
• no floors in buildings
  
• free heal at the doctor house
  
• no gear selling
  
• 31 collectable panties
  
• 1 Boss

If you play without the intention of loosing a fight, you will miss most of the events - you can even not enter the public bath. For intentionally losing a fight, you can use a pill. Go to the doctor for getting these pills of find a suitecase in the bad-guy areas in the upper left or in the lower right of the map.

Important: Once entered the bad-guy building in the lower left, there is no possibillity to exit. You have to fight your way out by winning or loosing the boss fight. If you try to use the exit door all defeated guys are reset.

There are 30 collectable panties (if more please leave a comment). Depending on your route, the number will differ from 18 to max.
You can expose you panties after changing to the school director at the school gate.
Until now I have no idea what this is good for (next to the obvious). There seems to be no game change on exposing (leave a comment if you know more).

Main events will develop on repeat depending on your resistance level. Other events will occasionally occur if you talk to NPCs also depending on your resistance level. On resistance level ~40, you probably have to talk repeatedly to trigger the event.

Main events

• School: Director Office
  
• School: Head of detention
  
• School: Bathroom
  
• Park: Naughty Boy
  
• Park: Garbage meadow (repeat talking until trigger)
  
• Stadium: PE Teacher
  
• Wrestling: Teacher
  
• upper left bad-guy area
  
• school exmamination
  
• public bath
  
• behind bad-guy building (you must not enter the building)

You can talk to the guy in the upper left bad-guy area to exercise fighting on multiple optional choices. The outcome of the battle has no effect on your stats.
Hint: If bond trigger the running bar on the outermost right for the best recover gain

You can have a preview what happens on total failure. You have to give up resistance to end the battle if you are immobile.

Thx to VegaScratchSilver

• Public Bath
  
• Punching
  
• Mysterious Man (behind bad-guy building)
  
• Learn Seductive Abillities
  
• Park meadow scene

Public Bath
Accessible on lower resistance. You can lower your resistance by loosing intentionally. It is not neccessary to loose the boss fight but on each loss your level will decrease as well. On resistance level 49 repeat talking to students (park, school, etc). Eventually an event is triggered. Do this again and again until you get 3 options (if you did not punch the stud). Now you can enter the public bath.
It is possible to increase your level by gaining EXP on sumo wrestling with the boys but this is extremely time comsumpting.

Punching
If you punch frequently male students, you will get detention events.

Mysterious Man
Loose first (or second?) boss fight and go behind the bad-guy building to meet the mysterious man. He will ask for video tapes. You will find the tapes on your next fight in the bad guy building in the video room. For the second tape, you probably will have to reset the map by trying to exit the building thru the entrance door.

Learn Seductive Abillities
After loosing the frist two boss fights try to escape and find in one room the demanding guy. He is asking you to entertain the guests. You will obey and dance...
In another room with the two gals you can learn another abillity from on of the guys.

Park Meadow Scene
Loose third boss fight and go to the park after being rescued. Talk to the guy multiple times for all events. Probably, the event is not triggered on the first or second (...) try. Repeat until triggered.