Alternate Change 2.5

What will you feel if someone's hiding something from you, especially when you thought you've known them all your life? Of course, you will try to find out what their secret is, wouldn't you?

Mari has always wondered why she's always stuck in these kinds of situations where someone seems suspicious, but never bothers to do something about it, unless she gets involved. She then uncovers some secrets that she wasn't supposed to know and puts her friends' lives in danger. As she tries to settle the problem, things only get worse when the ones she trusts are also hiding something. How will she be able to make it out?