Awright, to anyone who's having problems on the first few parts. Take note that this is all based on my experience playing, and may vary. I really can't tell since I can't read Japanese. During the course of the game, visit all places, especially those with character circles marked on them (this leads to a whole bunch of conversation or an item). Also note that you should visit places that are unaccesible normally once it comes up - this might lead to an item, or trigger an event or something.
CHAPTER 1
Maho Items
You need 3 items to trigger the event for battling her. While running through this chapter, keep an eye out for these events:
1.) The first time you get to visit the girls' locker room and can rummage through stuff, move the pompoms away from the table. You'll get your first item, which is a picture of Maho.
2.) Once that's done, you get the option to visit the town (lower part of screen) after school. Keep going there to meet a kiddie version of Maho. You'll get your second item: picture of kiddie Maho.
3.) After that, wait for school to end for the day, then go to the back part of the school (the upper half, you cant visit this area during school hours). The only place you can go here is the faculty lounge. Tap the brown shelf at the background where some keys are hanging - you can get one of those keys. This is your last item, and it opens the tool shed at the track and field portion of the campus.
That's the order that you get your items. If it doesnt appear, try visiting other places, maybe there's a bunch of character conversations that need to take place first. Anywho, after getting all items and having all possible conversations out of the way, go to the tool shed, then keep tapping the windows by the floor. You'll get the option to stay the night there. Do that, and when you wake up late at night, Maho appears. Prepare to battle.
Maho Battle
This one's easy. Tap the projectiles Maho shoots at you to swat them back at her and do damage. You'll notice that the Angel Sword needs to recharge after each swing. She'll go down easy. After that, we get to the part that some guys are really, REALLY waiting for - touching. Just touch/tap her like crazy, hitting the sweet spots (i have no idea which ones are Maho's sweet spots - I've just gotten into the game), showing her the clues (the notebook icon) every now and then. You'll get her heart racing, and her witch mark appears. It's on her left leg. Maho get!
CHAPTER 2
Maria Items
Again, run through the game visiting certain places with character circles and stuff. Keep an eye out for these, though:
1.) Conversation in classroom 2-D. Tap on a desk and you'll find that it's littered with talismans. Use your stylus to remove some of them. Also, you go to the shop at some point. Grab the talismans at the right side of the shop. First item get, a talisman. While you're there...
2.) There's also a blue book that you can get here. Second item get.
3.) Maho conversation in classroom 2-D. You'll find that a magic diagram has been burned into the same desk where you found the talismans. Third item: picture of the magic diagram.
Run through all the necessary events/conversations (there's one where you need to investigate a locker room with Maho, tap the floor part to trigger something) and you get the option of going to the rooftop. Again, stay there for the night, and Maria appears. Battle time!
Maria Battle
You now have two characters (switch them around with L shoulder button), Lulu (Angel Sword) and Maho (Projectiles). What I did was to use Lulu for defensive (destroy the stuff Maria throws at you) and Maho for offensive (fire Projectiles at Maria). She goes down fairly easy. And of course, touching time. By this time, I've found out that you can just tap the sweet spots to finish this portion off easier (compared to rubbing). So far, the sweet spots for Maria that I've seen are her ear, arms, and legs. Maria get!
CHAPTER 3
Renge Items
You only get 1 item, and you don't have it during the touching scene. Note that these aren't in order, I'm typing all of this from memory.
1.) Music room: tap on the picture with Maho to get a crystal shard.
2.) Library: remove the book on the table to reveal a crystal shard. Get Maho to investigate the bookshelf where the book you removed was placed so you can grab the crystal shard.
3.) Hallway: there's some light pillars. With Maho, deactivate them in the proper order (this is random). Just do trial and error, it's only 4 pillars anyway. You'll get another crystal shard.
When all three crystal shards have been collected, you form a crystal ball. You'll get the option of going to the gym, which is by the track and field area. Prepare yourself for the Renge battle ahead.
Renge Battle
Don't let the random teleporting and running around fool you, this one's quite easy. The moment she teleports near you and looks upward, she's getting ready to bash her head on you. Slash her with the Angel Sword to cancel the attack. Rinse, lather, repeat. Touching time. Renge's sweet spots are mostly her cheeks, ears and arms. Renge get, and up next is the shrine maiden (I dunno the name).
And that's where I'm in the game right now. Gonna continue playing in a while, this game is really fun, especially the witch battles. Oh, if anyone can add info or correct me on some parts in this post, it would really help so we can get through this game despite the language barrier.
ecepticons for a while. 
