As I mentioned in the introduction post (HERE), I've decided to keep track of the correct answers for the characters from the iPod's otome game "Shall we date?: My Sweet Prince" since I haven't been able to find a guide on the net. This post will be the walkthrough solution for Ivan

Ivan is so wrong for me on many levels. He's a butler who's the same age as your father and you enter into a relationship with him?! By birth right, he shouldn't even be allowed to be a candidate since there are SIX princes to choose from... He's way too old for me, in my opinion...

Here are the photos associated with Ivan from his album:


His letters to you (which are sent to your mailbox by the end of the chapter) are as followed:


Despite there being two endings associated with each character, only the happy ending (which is referred to as Happy Princess) will be the only one meriting an event picture. The other ending (normal) does not have a picture linked to it. This is the picture rewarded to you if you get your Happy Princess ending with him. Summary of the ending will not be provided to avoid spoilers of this endearing ending


Depending on the answers you give to Ivan, you'll get one of the endings aforementioned. If you chose all the correct answers, you'll get the happiest ending. However, from what I've seen, you can still get the happiest ending even if you don't provide all the correct answers (aside from Lambert), but you will lose out on some of the event pictures  

In order to get the Happy Princess ending, you must select these answers (with some variation, but this is guaranteed):
I'm sorry.
It sounds fun.
I should learn.
Want to visit?
Ivan will be mad.
Listen quietly.
I'll do my best!
I'll do something!
All right.
Come closer.
I'm excited.
I'll visit him.
Are you okay?
Wait a second!
There is someone.
Are you okay?
Ring.
I'm so happy.
Look for Ivan.
I'll be with you.
Don't die!
I prefer you.

That's the end of Ivan's route~! 

Please do not repost this without my permission or claim this as your own as it took me a while to get these answers!!

Other Walkthrough Solutions:
Lambert
Chezem
Nagit
Alvah
Jun
Melchiorre