Originally Posted by vicko
The message is the same apart from one charactor の
so it reads Dメール実験をもっとよく考えろ, but none of the other messages are anything like so it must be the one to send
Real annoying as your guides are always great and i have re-started so many times
Are you following everything listed in playthrough 2 exactly? This means answering and/or checking only the messages that are written and not reading any messages that are not written in the guide. This is very important to get into Mayuri's ending.
Since a few people have already got 1000 using this exact walkthrough, I'm sure that it's correct and something obvious is being missed. You also didn't skip playthrough 1 or anything right? I'm pretty sure it's impossible to see Mayuri's ending on playthrough 1.