Naughty School Ghost Stories

I’ll be using the names in the MTL translation so it’ll be easier to understand, i know the names don’t make any sense.
Toilet flower girl (hanako): Proceed with the story as usual, but before leaving the third floor toilet check the third stall again.
Nokkuribito: Return home at any time after unsealing the ghosts, talk to your aunt.
Kokkuri-san: At the temple take a ten yen coin from the box, then go to class 1-C on the second floor of the new school, then interact with the paper, after that, try to exit the room.
Wiggle: Check the principal’s office on the first floor, grab the binoculars, then go to the wheat field and choose “Keep looking”
Mouth slit woman (Kuchisake-onna): Go to the infirmary and talk to the nurse twice.
Kappa: Proceed with the game as usual but accept her request
Ms. Merry: Find the doll in the old school building, drop it in the canal. After that you need to visit different phones around the map in the order:
1.Phone Booth
2.Old Phone in the hall of the new school
3.White Phone in the staff room.
For the phone calls to trigger you need to walk right next to them.
Mr. (Ms.) Yomiko: In the storage room near the spider girl you can find a screwdriver, use it to open the drawer in the staff room, there you will find two keys. Use one of the to open the old gymnasium and go to the storage. Yomiko will only appear if you got the scene with Hanako.
Hikiko-san: You need to find 3 teddy bears around the schools.
1.Classroom 2-A
2.Girls Bathroom on the first floor.
3.Classroom 3-A (Need Vaseline to open)
After that go to the science lab on the third floor.
Wet (Snake) Woman: Same as entering the old gymnasium, but use the pool key instead to open the pool and go to the changing room, after that try to exit.
Piano Spirit: In the old gymnasium you can find some music sheets, take them and go to the second floor of the old school, then place the sheets on the piano, after that try to go down the stairs.
Hachishaku-sama: Go to the audio visual room on the third floor of the new school, on the computer read about Hachisaku-sama. After that go to the street right outside your house. There is a chance a message saying “Gives me the chills.” will appear, after that just go to the end of street and look her in the eyes.
Tsuchigumo:Proceed as usual but put away the sword.
Onihime: Get max lust level for Ayane and try to proceed with the ending as usual.
The game also has two secret characters:
First, you have to go to the library on the first floor of the old school, there you will find an open book, read it. After that go to the corner of the library where you will find a distant bookshelf, read it too.
Now for the characters themselves:
Lilypom: Go to the arts room, there move the statue on the table, this will make the principal’s statue move and reveal a staircase. Go down and tell the girl at the door that you are one of the slaves, after that go forward and you will get the scene.
Succubus: You will need to find 4 white stones around the map:
1.Next to the phone booth
2.Men’s restroom at the second floor of the new school
3.In the corner of the backyard
4.At the pool
After getting all of the stone you need the cutter knife from the art room.
After you got all of the needed items you can go to the classroom 3-C in the old school and summon the succubus using the pentagram.